Darrell Cadieux said:

Hi there,
Does anyone know if a Canon Angle Finder C for Canon EOS will fit on an EOS 6D?
It isn't listed in the compatabilities list where as a 5D III is. Should be the same diopter assembly.
Thanks

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Yes, I use it almost every day.

I’ve used the R5+100-500 in the rain a few times and had no issues. I wiped the drops of the lens tube before stowing it, and let it dry in the extended position at home.

I still try to avoid getting any form of fluid on camera gear, but sometimes it can’t be helped.

I'm wondering if anyone else out there is having reliability issues with the C70.

I have owned a C70 for 9 months, and had two major faults with the camera:

- My first C70 completely bricked itself after a shoot. It was about 2 weeks old at the time, and refused to turn on at all. I returned it to the retailer and was given a new C70.

- This second C70 has been working fine until yesterday when it now shows a "Lens error. Turn camera off and on" error. RF lenses basically don't work at all. It will now need to go back to Canon for repair.

This isn't localised to myself though, I know 3 other C70 owner/operators who have all had major issues with their C70s, including:

- The flip-out monitor coming lose, in some cases nearly falling off, requiring replacement.
- Dead pixel clusters on the monitor.
- Camera randomly stopping during recording, resulting in file corruption on the SD card.
- Strange red line appearing across the monitor.
- The waveform stops working, requring a reboot.

Between a group of 4 owner/operators including myself we have collectively sent back SEVEN C70s to Canon for repair or replacement, all within the last year.

In over 10 years of professional photography and videography i've never had a camera that's had so many major issues.

Wondering if anyone else has had issues with this camera at all?

Great shot. Beautiful bird. Well done, Glenn.

Now that I have the R7, I have tried it out with a few EF lenses via adapter (this is my first mirrorless camera). I bought the body only because I was not keen on the kit lens. With the adapter, the ef lenses protrude a fair bit, which is noticable given the small size of the camera.

However, I do want to get a compact walk around native rf lens. Perhaps the 35 rf 1.8 macro or the 50 f1.8 lens would suffice. I would love a 17-70 f4 rf-s lens but I'm not sure that is coming. Any suggestions?

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The elegant design of the Blackmagic Pocket Cinema Camera packs an incredible number of high end digital film features into...

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Continue reading...

My R7 has arrived at the camera store! Will pick up this weekend. I am 13th on wait list. Who says that number is unlucky?

A little off-topic but can someone suggest a good, practical reference book on optics as relates to camera lenses... not looking for massive optical formulas but rather a book or document with loads of illustrations and the fundamentals... not a complete technical idiot as I am an engineer (Materials Scientist) but must have skipped the optics lessons in physics classes... always amazed at the knowledge base on this site and appreciate any input in advance...

I am considering using this lens for astrophotography, so wide open resolution is critical. Is this a repurposed 24mm Art, except without the AF elements? Where may I find reviews?

neuroanatomist said:

I don’t agree with the first part. Personally, at least, I rarely shoot macro on a tripod. My handheld shooting in the 1:1 to 5:1 range is generally with the twin flash mounted on the lens or on Wimberly F-2 brackets. That does render IS unnecessary, and at those magnifications I generally 'focus' by just moving the camera back and forth.

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Very true, I was making the mistake of only considering ambient light photography, and a lot of people certainly do use flash. I used twin-macro and various other flash set-up myself originally, and adopted the same focus method, but nowadays I prefer to shot by ambient light whenever possible.

kaihp said:

So I finally got my R3 (425 days after preordering on April 14th 2021), changing from the 1Dx.

One thing that surprised me is the time DDP (4.16, the latest) takes to open and fully render the .CR3 files vs the .CR2 files from the 1Dx. Sure, there are 33% more pixels (18M -> 24M), but I found that the 1Dx .CR2 files opens in approx 12 seconds vs 35 seconds for the R3 CR3 files(!) - both tested/measured on the same laptop (i7-8565 CPU). Using my desktop (i7-9700K) doesn't bring down the opening time a lot (32sec).

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It's not just you. In my experience, CR3 files appear to put a significantly higher load on the CPU (both in opening them and processing them) than the older CR2 format. As someone else pointed out, I think a lot of this has to do with DLO corrections. But even without any corrections, I still find that it takes my computer noticeably longer to process CR3s than CR2s. For example, I noticed that files from the 5DSR and RP seem to process in about the same amount of time, despite the files from the former being twice as large. But...the 5DSR files are .CR2 while the RP files are .CR3 (like all their FF mirrorless cameras).

DevPreach said:

...
Any advice you could offer me would be greatly appreciated.
...

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Hi Matt!

I think a lot of good advice has already been given. So I will try not to repeat too much, but to add some of my thoughts.
I also had some Mr/Mrs issues in the past and can understand your annoyance, even though I haven't met such an unprofessional dispatcher/technician than you have.

So before jumping ship, think about the following:

• Could Nikon technical support solve your technical problems in a (technically) professional way, or are you also upset on the results?
• Look at your equipment, at what you love and often use, and how much it will cost when you jump ship.
• If you come to the decision to change to Canon, rent some equipment first, look if you like or can get used to ergonomics and camera menu.

Good luck with your choice.
And let us know how you decide.

Maximilian

New canon cameras including the R7 have Bluetooth connectivity with the new BR-E1 Bluetooth remote control. It would seem to be very simple to build an external vertical grip just connected to the tripod connector with the BR-E1 remote functionality built in. Adding additional controls to the grip would only require a firmware update to the camera to connect the additional functionality. What functionality would you like to see on such a grip? I'll start with a short list.

Shutter release
Aperture control
IOS control
Shutter speed control
auto focus
programable buttons

Are you listening Canon?

Lee Jay said:

I just use lenses that are big enough to hold, and there's no issue.

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I just know how to hold a camera with any lens attached to it, whether that lens is a pancake or a supertele, and there's no issue.

Like with the R5: HEIF is only available when using HDR, which disabled the fast refresh mode in the EVF.
Like the M6II: the burst option creates a single file that only DPP knows how to read and you can’t extract all images at once, you have to go one-by-one :/

Michael Clark said:

Thanks for the report! That disappearing ink you wrote it in, though....

I had to change to dark mode to even see it.

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Oh, sorry! I didn't even think about that. I always use dark mode, so I thought yellow would be a nice contrast. I'll keep that in mind next time.

Todays update to ACR/LR/PS adds R7 and R10 support: https://helpx.adobe.com/camera-raw/kb/camera-raw-plug-supported-cameras.html

It also adds support for the RF-S and supertele lenses:

If only I had more $$$$$$ (my last kidney is waiting for the R1)
Very interesting lens!
Thanks for the info, Nemorino!

How well would these work with adapter on EF-M? The Super35 is bigger than the APSC sensor in an M6II.

Michael Clark said:

For someone who purports to be an expert in the medical field....

Areal density resolution in hard X-ray digital imaging system

The concept has been around a while in more visible light related optical disciplines as well...

See page 6 for this reference:

"Thus it is clear that the areal size of a resolution unit must be..."

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LOL. Really, the best you can come up with is an obscure Chinese-language literature reference on X-rays and a simulation study likely pertaining to the the original Landsat (which launched the following year)? Keep on wiggling...



The resolution of X-ray imaging systems for medical use is specified in lp/mm, just as in photography. For example, this Philips portable unit that has a specified resolution of up to 3.125 lp/mm. Both the American College of Radiology and US FDA specify a minimum resolution threshold of 2.5 lp/mm (the latter applies specifically to mammography).

Each single pixel of Landsat 1 sampled a rectangular area of the earth's surface that was ~4400 m² (slightly larger than an acre). Even so, the spatial resolution of the MSS imaging system on the Landsats (and other orbital imaging platforms in general) is specified in meters, a linear measure of resolution.

Michael Clark said:

Yes, optical resolution has been and is normally expressed in linear units, especially in optics labs.

Optics labs and college physics professors also insist that the focal plane is nowhere near the film/sensor of a camera, either. Even though camera manufacturers call them exactly that and call the mark they place on the top of their products the "focal plane" symbol. Different communities often have different nomenclature that often assign slightly or even radically different meanings to the same words.

But the concept of areal resolution/density is not a novel one by any means. It's been around for a long time.

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More wiggling, the definition of the focal plane isn't relevant to this discussion.

Yes, areal resolution can be measured (although megapixels absent array dimensions are not a valid unit, despite your post that you later grudgingly and incompletely walked back). But this is a photography forum, and optical image resolution is measured with a linear measure.

So, let's go back to the original point of this discussion: @AlanF stated, “The maximum extra resolution you could get on a 24 Mpx sensor vs a FF 45 Mpx is 1.17x…” You replied, "Wouldn't that be 1.37x?" The answer is no, it would not. It would be 1.17x as Alan stated, not 1.37x as you stated. You were wrong. Period.

At this point, it's just pathetic that you can't simply admit that you were wrong to begin with. Nevertheless, I will accept that you are mentally and/or emotionally incapable of admitting you were wrong, and leave it at that.

Hello people,

Which have a better speed? Canon R says in Menu they recommend "bluetooth" but I don't know why, what's your experience?

unfocused said:

Is Custom Function 20 (Beep) set to "Off?"

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Doesn't seem relevant, but it's free to try...

Joules said:

I would personally hesitate to do such a conversion on an IBIS equipped body. Unless the filters are replaced with ones that have identical mass and distribution, it doesn't seem unlikely that some side effects may occur or wear might be increased. Not to mention even more trust and care must be applied to the conversion service.

That said, going for an R instead of the RP seems like a good choice since the R has the 5DIV sensor and therefore less to no fixed pattern noise / banding. That can only be a good thing for dealing with these different wave lengths.

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OOh...good thought....
That hadn't occurred to me...

C

Right, for sure they'd have to pay royalties to Apple. Say $5 royalties per device, add $5 BOM cost (3 radios + antennas) and increase camera price by $50-$100. I'd be ok with that.

keithcooper said:

Filters don't really figure in my work -maybe an ND on my 24, but not of the really wide.

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I often shoot architecture during business travel, and while I prefer shooting at blue hour sometimes that’s not possible and I’m limited to daytime shooting. A 10-stop ND allows daytime exposures long enough to blur out people walking by. I have a screw-in B+W for my TS-E 24, and the Wonderpana 145mm for my TS-E 17.

Since the pandemic limited my travels, I haven’t yet tested the Canon vND drop-in for that use case.