357 Battery equivalent chart. Sony RX100 VII – Build and handling

Patriot Announces the Largest Lithium Pegmatite Resource in the Americas at CV5, Corvette Property, Quebec, Canada

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CV5 Spodumene Pegmatite is firmly established as the largest lithium pegmatite mineral resource in the Americas and the 8thlargest globally.

109.2 Mt at 1.42% Li2O and 160 ppm Ta2O5inferred, (0.40% Li2O cut-off grade).
Based on 163 core holes totalling 56,385 m.

Geological model interprets a single, continuous, principal pegmatite body ranging in true thickness from ~8 m to upwards of ~130 m, extending over a strike length of 3.7 km (drill hole to drill hole), and which is flanked by multiple subordinate lenses.
Significant growth potential – the CV5 Spodumene Pegmatite remains open along strike at both ends, and to depth along a significant portion of its length.
Maiden (first) mineral resource estimate includes only the CV5 Spodumene Pegmatite and does not include any of the other known spodumene pegmatite clusters on the Property – CV4, CV8, CV9, CV10, CV12, and CV13.
Cut-off grade sensitivity analysis defines very high-grade and significant tonnage at high cut-off grade, and excellent grade with significant tonnage at low cut-off grade.
Company is well-positioned to aggressively advance infill and step-out drilling, and development studies at CV5, as well as drill testing of other known spodumene pegmatite clusters. than 20 km of prospective trend remains to be explored for lithium pegmatite at Corvette.

Darren L. Smith, Company Vice President of Exploration, Комментарии и мнения владельцев: This maiden mineral resource estimate at CV5 is the culmination of an aggressive 20-month drill campaign that kicked off with our discovery hole in fall 2021, and is nothing less than a team effort to get us here. This first resource has firmly established CV5 as a Tier 1 spodumene pegmatite asset, already ranking as the largest lithium pegmatite resource in the Americas, as well as in the top 10 resources globally.

There remains significant potential for growth, with the resource open at both ends and to depth along a large portion of its length providing a clear path forward for further resource expansion. Further, there are multiple known spodumene pegmatite clusters yet to be drill tested at the Property and more than 20 km of prospective trend yet to be explored. In the case of CV13, the 2022 and 2023 drill programs are anticipated to underpin a maiden mineral resource estimate in 2024 at that spodumene pegmatite cluster. We believe we have only just begun to demonstrate the scale of the lithium mineralized pegmatite system at the Corvette Property, Mr. Smith added.

Blair Way, Company President and CEO, Комментарии и мнения владельцев: We could not be happier with the result of this maiden mineral resource estimate at CV5, which will be the first of multiple resource estimates for the Corvette Property over the coming years. This Property is now officially host to at least one deposit that is definitely a world class asset with respect to the size, grade, and metallurgy when compared to its peers.

Emphasising Corvette’s development potential, Mr. Way explains: It firmly positions the Company as a leading candidate to provide long-term spodumene supply to the North American and European markets. This is a key milestone for the Company and will underpin future economic and development studies as we look to aggressively advance this asset on the path to production. I would like to thank our shareholders for their support, and moreover, thank the exploration team for their FOCUS and determination in delivering one of the largest spodumene pegmatite resources in the world.

Patriot Battery Metals Inc. (the Company or Patriot) (TSXV:PMET) (ASX: PMT) (OTCQX:PMETF) (FSE: R9GA) is pleased to announce the maiden (i.e., first) mineral resource estimate for the CV5 Spodumene Pegmatite at its wholly owned Corvette Property (the Property), located in the Eeyou Istchee James Bay region of Quebec. The CV5 Spodumene Pegmatite is located approximately 13.5 km south of the regional and all-weather Trans-Taiga Road and powerline infrastructure corridor, and within 50 km of the La-Grande 4 (LG4) hydroelectric dam complex.

The mineral resource estimate (MRE) at CV5 has firmly established it as the largest lithium pegmatite mineral resource in the Americas and 8 th largest globally, returning 109.2 Mt at 1.42% Li2O and 160 ppm Ta2O5 inferred, at a cut-off grade of 0.40% Li2O, for a total of 3,835,000 t contained lithium carbonate equivalent (LCE) (Table 1, Figure 1, and Figure 2). The geological model underpinning the MRE interprets a single, continuous, principal spodumene pegmatite body ranging in true thickness from ~8 m to upwards of ~130 m, extending over a strike length of approximately 3.7 km (drill hole to drill hole), and which is flanked by multiple subordinate lenses. Additionally, the resource and geological modelling has outlined significant potential for growth at CV5, which remains open at both ends along strike, and to depth along a significant portion of its length.

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Figure 18: Spodumene pegmatite clusters at the Property discovered to date.

Drilling Techniques and Classification Criteria

The mineral resource estimate for the CV5 Spodumene Pegmatite is supported by 163 diamond drill holes of NQ (predominant) or HQ size, totalling a collective 56,385 m, and eleven (11) outcrop channels totalling 63 m. The drilling includes programs in 2021, 2022, and through the end of the 2023 winter program (hole CV23-190). The 2021 and 2022 programs utilized exclusively helicopter transportable drill rigs, with the winter 2023 program utilizing a combination of helicopter transportable and skid mounted due to the construction of a temporary winter road for that program.

Each drill hole collar was surveyed with an RTK tool (Topcon GR5 or Trimble Zephyr 3), except for one (1) which was surveyed using a handheld GPS (Garmin GPSMAP 64s) only (Table 3). Downhole deviation surveys for each drill hole were completed with a Devico DeviGyro tool (2021 holes), or Reflex Gyro Sprint IQ tool (2022 and 2023 holes). Survey shots were continuous at approximate 3-5 m intervals. The use of the gyro tool system negated potential deflection issues arising from minor but common pyrrhotite within the host amphibolite. All collar and downhole deviation data has been validated by the project geologists on site, and by the database lead.

Drill core has not been oriented; however, downhole optical and acoustic televiewer surveys have been completed on multiple holes to assess overall structure. This data guided the current geological model supporting this maiden mineral resource estimate.

Drilling has been completed predominantly along a grid pattern at typically 100 m spacing; however, tightens to ~50 m in some places (typically over the high-grade Nova Zone), and widens to ~150 m in a small number of places. Subsurface pegmatite piece points generally reflect the collar spacing; however, are subject to typical downhole deviation. The initial drill holes targeting CV5, completed in 2021, assumed a southerly dip to the pegmatite and therefore three (3) of four (4) holes were oriented northerly. However, most holes completed to date are oriented southerly (typically 158°) to cross-cut perpendicular the steeply, northerly dipping pegmatite. Drill hole spacing and orientation is sufficient to support the geological model and resource classification applied herein.

All drill holes were completed by Fusion Forage Drilling Ltd. of Hawkesbury, ON. Procedures at the drill followed industry best practices with drill core placed in either 4 or 5 ft long flat, square-bottom wooden boxes (except for hole CV22-083 which used half-moon shaped wooden boxes), with the appropriate hole and box ID noted and block depth markers placed in the box. Core recovery typically exceeds 90%. Once full, the box was fibre taped shut with wooden lids at the drill and box slung north by helicopter to a laydown area on the Trans-Taiga Road (KM270 or KM277), where they were then transported by truck to Mirage Lodge for processing.

Channel sampling followed industry best practices with a 3 to 5 cm wide, saw-cut channel completed across the pegmatite outcrop as practical, perpendicular to the interpreted pegmatite strike. Samples were collected at ~1 m contiguous intervals with the channel bearing noted, and GPS coordinate collected at the start and end points of the channel. Channel samples were transported along the same route as drill core for processing at Mirage Lodge.

Figure 19: Diamond drill hole locations at the CV5 Spodumene Pegmatite, which form the basis of the maiden mineral resource estimate.

Sampling and Sub-Sampling Techniques

Core sampling protocols met industry standard practices. Upon receipt at the core shack at Mirage Lodge, all drill core is pieced together, oriented to maximum foliation, metre marked, geotechnically logged (TCR, RQD, ISRM, and Q-Method (since mid-winter 2023)), alteration logged, geologically logged (rock type), and sample logged on an individual sample basis. Wet and dry core box photos are also collected of all core drilled, regardless of perceived mineralization. Specific gravity measurements of entire pegmatite samples were collected at systematic intervals (approximately 1 SG measurement every 4-5 m) using the water immersion method.

Core sampling was guided by rock type as determined during geological logging (i.e., by a geologist). All pegmatite intervals were sampled in their entirety, regardless of whether spodumene mineralization was noted or not (in order to ensure an unbiased sampling approach) in addition to ~1 to 3 m of sampling into the adjacent host rock (dependent on pegmatite interval length) to bookend the sampled pegmatite. The minimum individual sample length is typically 0.3-0.5 m and the maximum sample length is typically 2.0 m. Targeted individual pegmatite sample lengths are 1.0 m. All drill core was saw-cut, using an Almonte automatic core saw in 2022 and 2023, with one half-core collected for assay, and the other half-core remaining in the box for reference.

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VANCOUVER, British Columbia and SYDNEY, Australia, July 30, 2023 (GLOBE NEWSWIRE).-

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Darren L. Smith, Company Vice President of Exploration, Комментарии и мнения владельцев: “This maiden mineral resource estimate at CV5 is the culmination of an aggressive 20-month drill campaign that kicked off with our discovery hole in fall 2021, and is nothing less than a team effort to get us here. This first resource has firmly established CV5 as a Tier 1 spodumene pegmatite asset, already ranking as the largest lithium pegmatite resource in the Americas, as well as in the top 10 resources globally.”

“There remains significant potential for growth, with the resource open at both ends and to depth along a large portion of its length providing a clear path forward for further resource expansion. Further, there are multiple known spodumene pegmatite clusters yet to be drill tested at the Property and more than 20 km of prospective trend yet to be explored. In the case of CV13, the 2022 and 2023 drill programs are anticipated to underpin a maiden mineral resource estimate in 2024 at that spodumene pegmatite cluster. We believe we have only just begun to demonstrate the scale of the lithium mineralized pegmatite system at the Corvette Property,” Mr. Smith added.

Sony RX100 VII – Autofocus

Sony’s big update this year, across all of its camera range, is its new AI-based real-time autofocus. Technically, the firm says that the RX100 VII now keeps track of the subject by analysing its colour, pattern and distance in real time, including face- and eye-recognition, while the camera conducts 60 autofocus calculation every second. The camera can seamlessly switch between focusing on the subject’s face and eye, and even hold FOCUS if they turn away from the camera.

Sony RX100 VII, 39mm equivalent, 1/1000sec at f/4, ISO 100

Real-time Eye AF works for both humans and animals, although not at the same time. Instead you have to select in the menu whether you prefer your family or your pets to be in FOCUS. Also, while Eye AF can be combined with FOCUS tracking for humans, this isn’t allowed for animals, which is odd, as many pets have been known to run around a bit. Otherwise, Sony’s new AF system has real practical advantages. When photographing people, you no longer have to specifically enable Eye AF by pressing a function button – it just works all the time.

Sony RX100 VII, 54mm equiv, 1/160sec at f/5.6, ISO 250

The tracking mode is also incredibly good at sticking to your specified subject, no matter how it moves or you recompose your image. I found that this means you don’t necessarily even have to move the FOCUS area around the frame – instead you can acquire FOCUS and recompose, with the AF point sticking to the subject and keeping it in correct FOCUS. With a camera like the RX100 VII that doesn’t have a dedicated AF area controller, this turns out to be a godsend.

Sony RX100 VII, 30mm equiv, 1/1000sec at f/4.5, ISO 100

Out of the box, AF tracking isn’t enabled, and when you try to turn it on, the camera will first declare that you can’t, because you need to switch to AF-C first. But once it’s set up, it works really well, with autofocus being ludicrously quick, essentially silent, and highly accurate. Even with fast-moving subject the hit-rate is very high, and the camera is no longer prone to dropping a sequence of three or four frames slightly out of FOCUS like its predecessor did.

Sony RX100 VII, 69mm equiv, 1/1250sec at f/4, ISO 100

If you’d prefer to specify the FOCUS point manually, this is still an option, and when you’re shooting with the rear screen, you can simply tap on the subject. But with the viewfinder you’ll need to either enable the Touch Pad function to use the touchscreen, or if this doesn’t work for you, press the button in the centre of the rear dial then use the d-pad to set the FOCUS point. This is pretty clunky, but no zoom compact is really much better. Thankfully, you can now set the FOCUS area to be displayed in red, rather than the invisible middle-grey Sony has favoured in recent years.

Sony RX100 VII – Performance

Just like its predecessor, in most respects the Sony RX100 VII is an exceptionally snappy performer. It powers up in about a second, and from then on responds instantly to all of the controls. In particular its high-speed focusing and shooting means that you should very rarely miss a shot, just as long as you can set it up in time.

The RX100 VII gives excellent images in good light. 30mm equiv, 1/1000sec at f/4, ISO 100

Auto white balance likewise does a very good job, and Sony seems to have reduced the tendency towards overly cool results in sunny conditions that I observed with the previous model. The JPEG colour has also been pepped up a bit, and the overall result is that the RX100 VII gives some of the most attractive files directly out-of-camera that I’ve seen from any Sony camera. In many cases I’d be perfectly happy to share them on social media directly, although some still benefit from brightening and colour-cast correction.

I found the metering to be exceptionally reliable in the multi-pattern mode, so while the usual array of modes are available such as average and spot, I didn’t need to use any of the others. The electronic viewfinder gives a reliable preview of how the image should turn out, so you can apply exposure compensation if necessary. There’s perhaps a slight tendency towards underexposure in certain conditions, which means the camera generally won’t clip highlight detail. Sony’s Dynamic Range Optimiser function does a great job of bringing out shadow detail in high-contrast scenes.

Out-of-camera JPEGs are generally attractive. 200mm equivalent, 1/400sec at f/4.5, ISO 100

Like all compact cameras, the lens-shutter design is extremely quiet in operation. In fact if you turn off the various operational beeps and fake shutter sounds and engage the electronic shutter, the camera is completely silent. Thankfully in a welcome improvement over the RX100 VI, it uses the same subtle visual cues as the high-speed Alpha 9 to indicate when it’s shooting.

The camera only has a conventional SD slot rather than the faster UHS-II type, so it can take a long time to record a burst of images to card, especially if you shoot 20fps bursts. This doesn’t have too much impact on operation, as you can still shoot more images and change many settings while the camera is writing. However you can’t initiate video recording until it’s finished, or adjust the flash or drive modes.

The long zoom is great for picking out details. 200mm equiv, 1/250sec at f/4.5, ISO 100

The lens is an excellent performer, especially considering its relatively long range. It’s very sharp in the centre wide open, but the corners are slightly soft, particularly at the extremes of the range. As a result, you’ll want to close it down a stop or two when shooting scenes such as landscapes where there’s detail right across the scene. I’d avoid the minimum aperture of f/11, as it gives very soft images due to diffraction.

Image quality is quite acceptable up to about ISO 3200. 113mm equiv, 1/125sec at f/5.6, ISO 2500

Battery life isn’t great, with the small NP-BX1 rated for 240 to 640 shots per charge, depending on whether you use the LCD or viewfinder. To get the most out of it I’d recommend setting more aggressive power-management settings than Sony’s defaults, and making a point of powering the camera off after shooting. Even then, it makes sense to buy a spare battery and a charger to ensure you can get through the day.

Sony RX100 VII – Image quality

While the RX100 VII sports the latest generation of Sony’s 20MP 1in sensor, this doesn’t bring much obvious change in terms of image quality. So just like the RX100 VI it delivers highly detailed images at low ISO settings, while keeping noise fairly well under control at sensitivity settings up to ISO 1600 or so. The top ISOs are just about tolerable if you convert to black white, but even then, visible banding artefacts can creep into shadow regions.

ISO 6400 looks OK in black white, but banding artefacts can be traced in darker tones. 200mm equiv, 1/160sec at f/4.5, ISO 6400

This means that the RX100 VII has no significant advantage over other compact cameras with the same size sensor, including the Canon G5 X Mark II and the Panasonic TZ100 and TZ200 in terms of raw image quality. Instead the main differentiators between these cameras will be the lens, and for JPEG shooters, the in-camera processing.

Sony RX100 VII – Resolution

Looking at the JPEG output, the camera resolves around 3200 lines per picture height at ISO 80, with the camera’s processing blurring higher frequencies in a bid to minimise sampling artefacts. Switch to raw and this improves dramatically, with almost 3600 lph resolved in our chart test. As always, increasing the sensitivity results in a progressive drop in resolution, with 3200 lph achieved at ISO 400, and 2800 lph at ISO 3200. The top two settings deteriorate even more rapidly, with just 2600 lph attained at ISO 6400, and 2400 lph at the highest option of ISO 12,800. From the 100% crops below, multiply the number below the lines by 200 to calculate the resolution.

Sony RX100 VII resolution: ISO 100, raw

Sony RX100 VII resolution: ISO 400, raw

Sony RX100 VII resolution: ISO 3200, raw

Sony RX100 VII resolution: ISO 12,800, raw

Sony RX100 VII – ISO and noise

At low ISOs the RX100 VII produces excellent image files with no visible noise and plenty of fine detail. There’s very little deterioration up to ISO 400, but beyond this, noise becomes more prominent and fine detail deteriorates. However you’ll still get entirely usable images at ISO 1600 if you don’t need to print them large. However at ISO 3200, fine low-contrast texture has essentially been swamped by noise. The top two settings really don’t look great, with lots of noise and some banding creeping into shadow areas. ISO 6400 might be OK when there’s no other option, but I’d steer clear of ISO 12800 completely.

Sony RX100 VII detail and noise: ISO 100, raw

Sony RX100 VII detail and noise: ISO 400, raw

Sony RX100 VII detail and noise: ISO 1600, raw

Sony RX100 VII detail and noise: ISO 3200, raw

Sony RX100 VII detail and noise: ISO 6400, raw

Sony RX100 VII detail and noise: ISO 12,800, raw

Sony RX100 VII review – Verdict

With the RX100 VII, Sony has done what it does best, and crammed an astonishing amount of technology into a tiny package. Somehow it’s fitted a 24-200mm equivalent zoom, electronic viewfinder, tilting screen, 20 fps shooting and 4K video recording into a body that you can slip into a jacket Its new autofocus system is a genuine advance too, especially if you regularly shoot erratically moving subjects such as sports or children. This is, without doubt, the most accomplished camera on the market.

The RX100 VII is technically the most accomplished camera you can buy

Unfortunately, though, the RX100 VII is also a glaring example of Sony doing what it does worst, and cramming complex features into an interface and body design that’s ill equipped to integrate them. Sometimes it’s merely unpleasant to use, but other times it feels actively obstructive. It’s a real shame that Sony hasn’t put the same effort into improving the RX100 design as it has into evolving its Alpha 7 series models.

The big other question is whether you’re prepared to pay a huge premium for a bunch of advanced features you may rarely, if ever use. Its cheaper competitors may not have quite the same capabilities, but they’re really not that far off. So if you want a small camera with a viewfinder for creative photography, then the Canon G5 X Mark II might be a better bet. Meanwhile if you just want a long zoom lens and decent image quality in a compact design, Panasonic’s Lumix TZ100 or TZ200 both deliver this at a much lower price.

With its small size and versatile lens, the RX100 VII is a great travel camera. 54mm equiv, 1/800sec at f/5, ISO 100

Ultimately, then, the RX100 VII is much the same story as its predecessor: incredible technology in a deeply flawed body design at an eye-watering price. And much as I said with the RX100 VI, I’d struggle to justify spending 450,200 / £900 on a point-and-shoot that’s so frustrating to use, no matter how good the results. But if you can afford it and are prepared to live with its flaws, the Sony RX100 VII is a phenomenally capable camera.

Sources:

https://www.benzinga.com/amp/content/33462304
https://financialpost.com/globe-newswire/patriot-announces-the-largest-lithium-pegmatite-resource-in-the-americas-at-cv5-corvette-property-quebec-canada
https://amateurphotographer.com/review/Sony-rx100-vii/