I will surely post my views. Even though I received it a few days back, I didn't get much opportunity to test it. I also purchase a B+W 52mm 6-stop ND filter, which fits the drop-in filter holder nicely. Will test that as well. All, for my first trip to Antarctica, at the end of the year, but I will get to test drive it in Patagonia and other parts of Chile before that.

I purchased it finally at B&H as the item was not going to arrive from Japan on time. The Japanese seller on amazon is a very nice guy and refunded me the full amount.

mimbu said:

So, it gets the same 4/5 star rating, and same 8/10 optical rating as the Samyang AF 35/1.4 that is currently on sale for $450. Ouch.

Disappointing that there is no similar review yet of the Sony 35/1.4 GM which is $100 cheaper than the new Canon lens, and is likely why Canon couldn't get away with charging $2300 for a 35/1.4L prime anymore.

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I don't understand the emphasis on the $100 difference. It isn't as though these lenses can be used cross platform. I've never known a sane person who'd ditch one brand for another over $100. Switching brands costs many many thousands. I see brands competing with each other, yes. But do single lenses compete? Unless a person is carrying both branded bodies, no.

The vast majority of us can't afford 2 brands. So, for us, there is absolutely zero cross brand lens competition unless the lenses have the same mount or an adapter.

There are people here that use multiple brands. Those people, in my opinion, ain't worried about no $100. That's no speed bump for them.

OldrockyGN said:

I have an R5m2 and an R7. I have them both set up the same - with C1, C2, and C3 set for
different purposes. C3 is for birding (shutter preferred). C1 is for landscapes (aperture preferred). And
C2 is "general" (and very close to original/as delivered settings). The R7 is used mostly for the
landscapes. The R5m2 is used for birding. I do not do video. Each camera can back up the
other should one 'act up' (hasn't so far).
My biggest gear improvement was when I got the RF 100-500. My second biggest improvement
was when I went to LrC. The R5m2 was a step up - but not as large as the other two. I'm primarily
a birding photographer (no video).
- Oldrocky in the PNW

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Ok, i can wait a bit longer, not in rush, i will see those R6III and R7II reviews first, most likely one of them i will get, then another one it will depend on my budget later, either R5II or R3.

$3899 from B&H seems a little steep...

antonio_s said:

It's manual aperture, but it has full RF EXIF/focus assist support, I'm pretty sure.
[...]

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From the pictures I could find of the EF-mount version, the lens lacks the aperture ring found on other mounts, which would imply having an electronically controlled aperture.
I don't have any actual hands-on experience, so please correct me if I'm wrong!

We have discovered an issue where the SD card is not recognized by the Canon EOS R5 Mark II, EOS R5, or EOS R3 after sanitizing it with Refresh Pro (version 4.0.3 or earlier). We plan to release Refresh Pro (version 4.0.4) soon, which will implement a fix. We ask that customers using the affected […]

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GoPro’s New Max 2 It’s been six years since GoPro introduced the Max. The new 360 action camera offers what GoPro claims is “true” 8K 360-degree video. Apparently, this 8K resolution does not include any overlapping or unusable pixels, so you get the full 8K resolution from the video output. GoPro also states that no […]

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This is a great-looking flash trigger. Godox stepped up their game with this one. Today, Godox has announced the X3Pro flash trigger, featuring a significantly larger screen and body. Some proponents can really argue, though, that while this looks good, the lack of tactile controls makes this more challenging to control in the studio environment, […]

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JDub said:

I had the affordable Sigma EF 135mm 1.8 and that was crazy crazy sharp too, only sold as I had the 105mm 1.4 and used that more.
The EF 135 2.0 by today's standards could be considered soft, however, not everything needs to be pimple revealing sharp.

For my workloads I'm not likely to notice a difference, but if I were creating wall sized posters the real world difference may be worth it.

Personally I'm saving for the 85mm 1.2 first. At 135mm you stand quite a way away from your subject/model.

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thx for your reply. I don´t mind softer lenses, sometimes I actually prefer them. But with the R5 "soft" often turns into "not sharp" oder even slightly blurry. I am experiencing this with RF 35mm. I loved the pics I took with EOS R, but have some trouble with the R5.

As for now, I'll probably just rent the 135mm for a weekend to play around. It should be fun and satisfy my curiosity.

Assuming these are planned lenses, I really hope that 20-50 F4 is a full frame one, it would be great on my R8.

mimbu said:

You're paying for IBIS in every lens, and there are of course lenses that don't have it at all.

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A minor quibble: by definition, a lens cannot have IBIS. ILIS or just IS.

I do astrophotography. My workflow in the field involves manually focusing the lens, and then mounting the camera on my tracker and shooting multiple frames. Once mounted on the tracker, checking focus is cumbersome.
One of the key sources of bad data, and sometimes whole wasted nights, is focusing errors. It is very easy to bump the focus ring to throw things off slightly, just enough to create unacceptable frames. Things get even trickier when a lens heater is needed.
Is there a way to turn off focusing completely - i.e. no autofocus and no manual focus. In theory one should be able to turn off manual focus because modern R mount lenses are focus-by-wire and there is no mechanical coupling between the focus ring and the lens elements. I want to focus my lens at the start, and then leave the lens elements where they are.
My camera is an RP.

And.. the body is made out of polycarbonate, magnesium alloy, asbestos, pudding?

Nice experiment. Thanks for sharing.

antonn said:

I use both cameras (R1 + R5M2), and I've used the R3 and R7 with this lens. These cameras and this lens weren't available a decade ago.Speed isn't necessarily a matter of high power; different autofocus algorithms are enough. For example, the R5M2 is reluctant to shift focus from a blurry foreground to a distant background, while the R3 and R1 try to focus immediately. The settings are the same, but the algorithms are different. With the RF100-500 lens, both cameras (R1 + R5M2) work equally fast, perhaps because the DOF is larger and the camera can more easily determine where to focus.You can always try it yourself to be sure

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The RF 600/4 is basically an EF adapted lens whereas the RF 100-500mm is native RF. I wonder if they are the reasons for the difference. Perhaps someone with the RF 100-300mm could comment. The AF of the RF 100-500mm on the R5ii (and on the R5) continues to amaze me for speed of locking on to BIF.

You can't ignore physics. The larger the sensor the larger the lens, the faster the lens the larger the lens. I'd pick a faster lens over a longer one any day. After all these aren't made for sports or birding. For that I'll take my om1. Something pocketable with a fast lens, good af and an evf all day for me. G5x iii please. I would say g1x iv but then there is that physics problem. Even the lx100 isn't pocketable and it's only mft.

He went to the barber. Nice shot. Maximilian.

Have video shooters never heard of a zoom lens?? That is the easiest way to change focal lengths. Oh, are they afraid they'll forget to set the zoom for a shot?? Wow, what professionals. Leave it to video shooters to make changing a lens seem next to impossible because the filter size is different... Are we still living in reality right now or what?

AlanF said:

Richard, the MTF chart is confusing me. Is it corrected for diffraction like the Canon one is? The values at f/8 are lower than at f/4 so it could be. Otherwise it is unusual for f/8 to be so less sharp.

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the fact that the center lp30/mm goes down at F/8 makes me think you are right that they are showing it diffraction corrected.

steven parker said:

I own four of their YN600EX-RT speedlights and have mixed reviews. Build quality is poor: loss of connection between camera body and flash at the hot shoe, every battery door broke so I had to replace them plus some minor off-camera wireless sync problems. Still, all my problems seemed to be everyone's problems (after checking the boards) so I switched back. I'm a photographer in New York and the secondary market is flooded with Canon Speedlights at ridiculously good prices. I picked up four of them this week (September 2025). I'm not comfortable using Yongnuo lenses considering the problems I had with the YN600EX-RT Speedlights. If anyone has real world reviews or photos please share.

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For 3rd party flash I always go for Godox, those Yongnuo flash are pretty old and it is from their early days. There's a lot of progress since then.

mimbu said:

As a Canon customer, Canon knows what is best for you. Those third party lenses are dangerous and you shouldn't hang out with them. You might pick up some weird disease.

That sl*t Sony lets anyone mount, you should stay far away.

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I just wanted to say I thought this was really funny! Thanks for posting it.

djkraq said:

View attachment 225852

Bro, what are you even talking about? CINED marked it as one of the highest DR camerast to be released right now. SMH.

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Dynamic range is not everything. I want fast readout speeds, manageable file sizes, and reliable record times. Something the R5 doesn’t check all the boxes of. My original comment had nothing to do with dynamic range.

Thanks for the review, @Richard CR

It's great, that Sigma supports us with such a unique "pro" lens for APS-C.
And I love to read, how well it performs.

For me, it is too big to pair with my R50 for the typical travel/hiking use.
My personal favourite is Sigma's 18-50/2.8. So small, still f/2.8, and great IQ.

And the best: Sigma offers both

DJI has announced the newest drone in its Mini lineup, the Mini 5 Pro. The new Mini 5 Pro drone now features a 1″ sensor in the sub-250g series for the first time, promising excellent imaging. DJI has made significant improvements to this model, building upon the features of the Mini 4 Pro it replaces. […]

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Very dramatic. I really like this shot. Well done, Berowne.