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Patent: Canon RF 15-28mm f/4-5.6 IS and other wide angle optical designs

Eventually we’re going to see more affordable RF mount lenses from Canon and one of the obvious types of lenses they’ll need is an affordable wide angle zoom lens.
Canon has published a patent for such a lens and others with the aim of making manufacturing easier, which also means less expensive.
Canon RF 15-28mm f/4-5.6 IS

Focal length: 15.40mm-27.50mm
F value: 4.00-5.60
Half angle of view: 54.51-38.94
Image height: 19.00mm-21.64mm
Overall length: 103.50mm-103.50mm
Back focus: 14.20mm

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Exascend Launches Nitro CFexpress – the World’s First VPG400-Certified CFexpress Type B Card

Exascend, Inc., a leader in industrial-grade, enterprise-class and cinematography flash storage solutions launches the world’s first VPG400-certified CFexpress Type B memory card – Exascend Nitro CFexpress. Certified VPG400 by the CompactFlash® Association using its stringent Video Performance Guarantee Profile 4 (VPG400) qualification, Nitro CFexpress delivers incredible sustained video recording performance in even the most demanding cinema camera systems. With 512 GB capacity – over three times the capacity of existing VPG400-rated CFexpress Type A cards – it enables cinematographers to capture long shots without unnecessary interruption. Further fortified with IP67-certified ruggedness, a next-generation-ready CFexpress controller and ultra-thin...

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Canon to finally announce a fast RF 35mm lens by Q3 of 2022

The long-rumoured Canon RF 35mm f/1.2L USM may finally be hitting dealers later in Q3 of 2022. This lens has been talked about ad-nauseam for quite some time now, and it has been on our roadmap since day 1.
We have been told that the lens is in the hands of testers and marketing folks and recently appeared in an internal dealer roadmap.
There still seems to be a bit of back and forth as to whether it’s an f/1.2 or an f/1.4, but at this point, I don’t think it’ll matter too much. Canon will sell as many as they can make for a long while.

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Industry News: Nikon plans to have 50+ Z-mount lenses by 2025

Canon recently let it be known that they plan to release 32 RF mount lenses by 2026, which seems to be a very aggressive approach to the system. Not to be outdone, but Nikon has now come out and said that they plan to have 50+ Z mount lenses by 2025 in their latest investor relations release.
More than that, Nikon also plans to put more resources into their video features for content creators. Nikon’s place in this segment has always been thought of as weaker than offerings from Canon and Sony,  Whether that’s fair or not is up for debate.
Nikon’s current plan

Concentrate management resources in high value-added products and mirrorless cameras(Meet expectations of professionals and hobbyists and raise ASP 20%)
Bolster the Z mount system by expanding the lens lineup (50+ lenses and a 2+ lens attach rate)...

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Is Bowens still in business? Any alternative to XMT500?

I'm considering buying my first flesh heads and I'm very interested in battery powered Bowens XMT500 Twin head kit. But I wonder if this is the right choice. Even though Bowens seems to be UK company, their products are sold only by Wex and they are constantly "awaiting stock". So are they so popular that they are sold out immediately or is the company going out of business?

Is there any other battery powered system worth considering instead? I'm not a Pro and I don't make money through photography. I'm looking for something I could use without main for both portraits and product photography.

Will Canon make a 4k only r5c type of camera?

The R5C is an amazing camera, technologically speaking.
But if we look at the FX3, for the gorilla filmmakers, it is much smaller and outputs the same awesome 4k...

Again the R5C is amazing but that massive fan in the back kills me! All because of 8K and that massive sensor...Which I would never use.
I don't want to go to Sony with the FX3 but I also don't want a chunky Canon that I am paying more for for the 8k I wont use..

If anyone happens to have information on future developments please let me know!
How awesome would it be if Canon made another R5 with just 4k and wasn't as expensive and didn't have a chunky fan and didn't over heat?
The FX3 has a fan but it is significantly thinner.

The FX3 really is a better camera if you're only shooting 4k, but I can't go to Sony. Also what's with the screen sizes..

My canon 6D has a larger screen than both of them and when filming in 1080p I get to see more of my image vs filming in 4k on either screens, With the FX3 and R5C they have to fit the ratio on the screen but it gets so small.. You'd think there would be a work around..

Why am I paying close to $5k with the R5C to update my system for a smaller screen, larger files, larger body and 8k I wont use.... all just for 4k?
FX3's screen isn't great either but that doesn't mean I or any other consumer should settle.. However it seems like most people have and continue to let these companies get away with this...

Some people may opt for a monitor but the simplicity of having it all in one body is great. +1 for flippy screens (Canon & Sony)

Maybe I should get some nice Cine lenses for my 6D for $5k instead.. It would look just as good in 1080p.

Think about it.. If everyone buys their 4k cameras with that 8K sensor, Canon will continue to make "almost perfect" cameras, continually lumping the market into the 8k category and other things WE/THEY don't really need..Canon never perfected a 4K camera without crop right?

Sony did it's users right with the FX3. Much bang for the BUCK. It's a GREAT 4k camera.
Where is Canon's? Sure the R5C also has GREAT 4k even slightly better than the FX3 due to oversampling but look at the cost in terms of price,battery power, size...
You can do it Canon! I believe in you!

Anyone experiencing battery drain in their R6

I'm only using my camera sporadically at the moment, and for the last few months I've noticed the battery seems to drain during the periods I'm not using it. I'll fully charge the battery, take a couple of shots, then when I come back to the camera two weeks later, the battery is either very low, or completely dead. I always ensure it's switched off before I put it in it's bag. Issue happens on multiple batteries. Camera is updated to latest firmware

I'm pretty sure it wasn't like this until a few months ago. Anyone else experienced similar issues?

ePhotozine reviews the Canon EOS RF 16mm F2.8 STM and RF 14-35mm F/4L IS USM

Amusingly, the near freebie 16mm is measured to be sharper in the centre than its zoom big brother.

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New Cinema Lenses To Be 20-50mm and 45-135mm

We just got word that the new Cinema EOS zoom lenses will be a 20-50mm and a 45-135mm, with an aperture wider than the current zoom maximum apertures (f/2.8).
Mounts will be EF and PL, as expected. The image circles will be a bit wider than full frame so as to accommodate various video sensors that are slightly larger, such as the VistaVision format employed by some RED and Panavision cameras.

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Nikon Releases Z 800mm at 1/3 Cost of Canon’s

Nikon this morning released its Z 800mm f/6.3 PF VR S, a big milestone for the Z mount, which until some weeks ago lacked most serious supertelephoto glass. Rumored only recently to be launching, the lens turns out to be light (5.25 pounds) and cheap ($6,500). It employs Nikon’s PF fresnel technology to significantly shorten the lens.
Nikon-z-800mm-mtf-168x168.png
Nikon
While review copies seeded around the YouTuber community were tethered to agreements preventing people from commenting on image quality with the pre-production models, the MTF chart found on Nikon’s site is pretty breathtaking, as seen at left.
Because the Nikon lens is a PF fresnel design, the MTF chart may reflect theoretical production perfection that isn’t quite reached in actual manufacturing. It will be some time before samples in the wild confirm what the graph suggests...

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Canon applies for High Magnification Super Telephoto Zoom Patent

Atypically in patent embodiments, it’s usually difficult for super-telephoto zoom lens to take full advantage of the RF mount.
One reason is that you simply can’t use a Tele extender if the rear elements are sitting too far back in the lens.  Because of this, at times, it’s difficult to determine if a patent application is for RF or EF lenses because there’s so much room in the rear of the lens from the last element to the sensor plane, that it could be either mount type.

In this Japan Patent application, 2022-053697, Canon is applying for some higher magnification (shorter MFD) super-telephoto zooms.
These embodiments show a back focus distance of around 30mm, which would make them more extender non-friendly for the entire zoom range.  But they could fit the extender on for only the telephoto part of their zoom, similar to the RF 100-500L.  With a short back focus distance, these embodiments are certainly RF mount only.
Birders and sports enthusiasts that have long lusted over...

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Canon Survey

I just received a Canon marketing survey. It was basically asking about which social web sites I used to follow Canon, and which influencers I followed.

My answer was none of them. The sites I use most were not mentioned, TDP, DPR, FM or CR were not covered. I inserted them in the survey when I had a opportunity. It has me wondering if Canon sees the speciality photography sites as useful to their marketing.
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Further clarification on the upcoming Canon CINI lenses

We have received a detailed clarification (thank you) on the upcoming two cinema lenses that we leaked back in early March.
According to the source, these new lenses are not based on the RF mount.  The lenses have been designed for the EF and PL mounts.  This actually makes sense for Canon’s CINI lenses as the lenses would then support the largest possible market share of high-end cinema cameras.     It would also be impractical to support PL and the RF mount in one lens as the PL mount is 52mm for the flange to sensor distance, versus 20mm for the RF mount.  Meanwhile, the EF mount which is also a quasi-industry standard has a 44mm flange to sensor distance, making the conversion to PL far more realistic.
These lenses are also designed for full-frame and are 8K capable, and even larger than full-frame image circles. The source mentions that the lenses are capable of supporting Alexa LF.  They are also rumored to be the fastest cinema zooms available on the market when they are...

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New Canon 600mm f/4 Design Uses Spotting Scope Trick

Just a month after the Canon R5 came out in 2020, Canon filed a patent application – published only this morning – That attempts to make a smaller 600mm f/4, without resorting to fresnel DO optics and avoiding catadioptric designs that use a central mirror that blocks some light and causes doughnut bokeh.
img-728x597.jpg
The new design places two optical tubes atop each other, with a couple figure-four mirror arrangements that bump the light from the top, larger aperture tube eventually down to the lower tube that contains most of the focusing and aberration-correcting lens groups. The movement of the light between the two tubes takes up 575mm of the 600mm focal length, allowing for significant length savings.
This results in a two-tubes-squished-together look seen commonly among...

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RF 500 F4L Updates

Curious if there are any legitimate updates on this lens, as to weight, overall size and most importantly when/if it will be available for purchase. I am in the process of going all mirrorless, and while my 500 F4 Mk II is working very well, I would welcome w size/weight reduction. This thing of getting older and having bilateral frozen shoulders is making me hope for a lighter option.

All that said, I have not found any recent updates. I know with the worldwide chip shortage my wait may be longer than desired (already is for that matter ), but any relevant updated info is appreciated! Thx

CANON SOLAR PANEL FLASH BATTERY CHARGERS?

So, found this, but its for a brand of flashes I've never heard of, but its something canon should look into as it says you can only use the charger on their own flashes.

CFexpress Options Bloom: More, Faster, Cheaper

In the past few months CFexpress Type B cards evolved from the super-expensive-but-fast option for flagship bodies to super-fast, almost-as-cheap-as-SD-UHS-II cards. And they got faster still. Wise, Delkin and Angelbird launched new cards and Mark II versions of older cards. Each launched a flagship line designed for more reliable high-bandwidth video recording and an improved large capacity line that is cheaper. Camnostic updated its  review of CFexpress Type B cards to compare these new offerings and others against a rapidly growing library of legacy cards. Below is a summary.
New-Angelbird-CFexpress-Type-B-Cards-300x213.jpg
The New 1rst Place Finisher (Middle)
Of...

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  Laowa 12mm f/2.8 Zero-D for EF: question for astrophotography

Hello. I own a Canon R5 with several lenses including the 8-15mm EF fisheye and the 15-35 f2,8 RF which I use mostly for astrophotography (Milky Way and Northern light).
I just came across the latest Laowa 12mm f2,8 BUT I am not sure if can somehow fit between the EF Canon fisheye which I already own and the 15-35mm RF lens specifically for those kind of pictures that I am interested to taken.... (Ideally a brighter f 1,8 or f2.0 maximum would be better).

Any comment?

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