• UPDATE



    The forum will be moving to a new domain in the near future (canonrumorsforum.com). I have turned off "read-only", but I will only leave the two forum nodes you see active for the time being.

    I don't know at this time how quickly the change will happen, but that will move at a good pace I am sure.

    ------------------------------------------------------------

Did Canon See the Writing on the Wall with the RF Mount?

It is interesting that they still release only about 6–10 lenses a year even after starting from scratch with the new mount. I understand that Canon has limited capacity, but if Sony, Tamron, Sigma, and others can survive by making lenses almost exclusively for the E-mount, then it should be worthwhile for Canon to expand their capacity and fill out the RF lineup more quickly.
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A Canon RF 300-600mm f/4-5.6L IS USM on the Horizon

Unfortunately there doesn't seem to be any update so far. @Canon Rumors may have something in the works, but I haven't seen anything else on the internet. I bumped this thread to see if we could get that wheel spinning a bit lol. But who knows, maybe this one died down again. I certainly hope not!

In any case I'm at least rather happy with my 70-200Z + 2x for now, though I am hopeful for a 300-600 eventually. Some recent butterflies:
View attachment 226875
View attachment 226876
I guess it will stay again just a rumor. It became so silent about it so don’t think any wildlife lense again.
Slowly becoming really disappointed with canon.
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Rumors continue to swirl around the Sony A7V

Pretty much all their full-frame cameras since the A9 II can do it. At this point, I find it hard to understand why Canon isn’t featuring that in their cameras, I hoped the R6 III would change that, but it didn’t.

speed. it's 4x faster in e-shutter doing 12 bit - canon uses a ramp comparator, so the more bits the slower the ramp.
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Rumors continue to swirl around the Sony A7V

The rumormill is continuing to drip information regarding the Sony A7 V. Slowly, this is the latest camera in a long line of Sony's mid-level class full-frame mirrorless camera, which, like the R6 lineup, has grown up a lot over the years. Currently, according to SAR, the specifications include; The partially stacked sensor is a […]

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BIRD IN FLIGHT ONLY -- share your BIF photos here

Really cool photos, I especially like the third. The motion in the wings and the expression of the mallard are great.
Thanks, ThomasTH! I wish I could say I planned the slight blur of the wings, but I thought my shutter speed was just on the edge of freezing motion. Oh well, I was on the wrong side of that edge.
But I like the slight blur regardless.
As far as the expression, apparently I choose to photograph the duck that is employed by a modeling agency;)
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Show your Bird Portraits

Saw a distant raptor 80-100m away so pointed the R5ii with the RF 200-800mm + 1.4xTC at 1120mm. It works pretty well and I was able to identify it as a Buteo buteo, the European Buzzard, only 400px x 500px in the image. For amusement at 1120mm, a portrait of a House Sparrow at 5m away (cropped).


View attachment 226913View attachment 226914

Amazing details in the second one.
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Canon EOS R5 Mark II: Firwmare v1.1.1 Release

I’m curious why there’s total silence about this fact here and on DPReview. By the way, it seems to have fixed that nasty Error 70 issue in Multiexposure mode that I used to encounter.
I didn't even realize there was a new firmware release, I was kind of relying on this thread for that but maybe I missed it or I'm following the wrong one.

But thanks to those who updated me!
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Mushrooms And Fungi Of Any Kind

Do you have any trouble with your tripod vibration?
Depends on the situation: I use a small travel tripod which is not the most stable. As You see in the "making of" pictures, I removed the center column to get closer to the floor. If I have the camera at the end of a fully extended macro rail vibration is of cause a problem. But I use the remote control and allways a delayed shutter of two seconds. And the Laowa lens is much smaller then the Canon MPE 65.

Now two stacks made with a MT 24 flash

R5m2 + RF100L
135 frames close to mfd
flash135.jpg

and 35 frames
Pilz 35 flash.jpg
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Powershot V1 shows Impressive Dynamic Range Results

Your central thesis that dynamic range is proportional to pixel density is a very common misconception. Dynamic range is proportional to sensor area, not pixel size (pixel density). This is made quite clear on the photonstophotos site in the Notes under the graph he plots of dynamic range vs sensor area. https://www.photonstophotos.net/Charts/PDR_Area_scatter.htm
"Notes:
Photographic Dynamic Range increases as sensor area increases.
This is because the Signal to Noise Ratio (SNR) increases roughly by the square root of area.
Therefore the x-axis on this chart is the square root of the sensor area.
Note that pixel size does not enter into this relationship.
"

The dynamic range of the V1 sensor is what you expect from that relationship. The V1 sensor 18.4mm x12.3mm = 226mm^2, the R7 22.3mm x 14.9mm = 332mm^2, and FF = 36mm x 24mm = 864mm^2. The photonstophotos plot of the dynamic ranges of the V1, R7 and R5 fits nicely to that pattern

Screenshot 2025-11-23 at 14.10.12.png
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