Is the Canon EOS R a 1 and done

Started 9 months ago | Questions
sportyaccordy Forum Pro • Posts: 18,290
Re: Is the Canon EOS R a 1 and done

Glenn Haley wrote:

I use a EF 40mm f/2.8 pancake lens on an RP with adapter and get very nice results. Could you explain to me why an R FF MILC pancake lens would not perform well?

I have the 40mm too. With an adapter it's not a pancake lens anymore. It's like 45mm long in total. An RF mount lens the size of the EF 40mm would either have a very short focal length (aka ultra wide angle) or need to be a retrofocal design. Neither of which work well without a ton of corrective elements.

We have seen MILC pancake glass for Sony E and Fuji X. The Sony 16/20mm lenses range from terrible to mediocre and they only cover an APS-C image circle. Fuji 18mm is better, but still not great. Samyang has a FF 24/2.8 which is small but no pancake, and it has a lot of problems. Sharp, but extreme vignetting. The way I see it, if it were possible to have made a decent short flange pancake lens we would have seen it by now.

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Sometimes I take pictures with my gear- https://www.flickr.com/photos/41601371@N00/

 sportyaccordy's gear list:sportyaccordy's gear list
Canon EOS R Canon EF 135mm F2.8 SF Sigma 50mm F1.4 EX DG HSM Sigma 50mm F1.4 DG HSM | A Canon RF 35mm F1.8 IS STM Macro +1 more
zman2596
zman2596 Regular Member • Posts: 171
Re: Is the Canon EOS R a 1 and done

sportyaccordy wrote:

Glenn Haley wrote:

I use a EF 40mm f/2.8 pancake lens on an RP with adapter and get very nice results. Could you explain to me why an R FF MILC pancake lens would not perform well?

I have the 40mm too. With an adapter it's not a pancake lens anymore. It's like 45mm long in total.

Agreed. It’s still the lightest, smallest lens I I have to use on my RP for now.

 zman2596's gear list:zman2596's gear list
Canon EOS Rebel SL1 Canon EOS RP Canon EOS R6 Canon EF 40mm f/2.8 STM Tamron SP 70-200 F2.8 G2 +7 more
sportyaccordy Forum Pro • Posts: 18,290
Re: Is the Canon EOS R a 1 and done

zman2596 wrote:

sportyaccordy wrote:

Glenn Haley wrote:

I use a EF 40mm f/2.8 pancake lens on an RP with adapter and get very nice results. Could you explain to me why an R FF MILC pancake lens would not perform well?

I have the 40mm too. With an adapter it's not a pancake lens anymore. It's like 45mm long in total.

Agreed. It’s still the lightest, smallest lens I I have to use on my RP for now.

I have the RF 35 1.8 as well...  it's not that much bigger, and according to my scale is only about 60g heavier. For me, 60g and maybe 15mm of length is a welcome trade for more speed and better + faster AF. Not that the 40/2.8 is a bad lens though

-- hide signature --

Sometimes I take pictures with my gear- https://www.flickr.com/photos/41601371@N00/

 sportyaccordy's gear list:sportyaccordy's gear list
Canon EOS R Canon EF 135mm F2.8 SF Sigma 50mm F1.4 EX DG HSM Sigma 50mm F1.4 DG HSM | A Canon RF 35mm F1.8 IS STM Macro +1 more
Sittatunga Senior Member • Posts: 2,884
Re: Is the Canon EOS R a 1 and done

sportyaccordy wrote:

Glenn Haley wrote:

I use a EF 40mm f/2.8 pancake lens on an RP with adapter and get very nice results. Could you explain to me why an R FF MILC pancake lens would not perform well?

I have the 40mm too. With an adapter it's not a pancake lens anymore. It's like 45mm long in total. An RF mount lens the size of the EF 40mm would either have a very short focal length (aka ultra wide angle) or need to be a retrofocal design. Neither of which work well without a ton of corrective elements.

It would be a telephoto, not a retrofocus lens.  The Olympus mju (Stylus) cameras had 35mm f/2.8 or f/3.5 full-frame telephoto lenses which would only protrude 10mm beyond the RF mount, if you could adapt them.  They made excellent enprints from colour negative film, but were not up to the standard you'd expect from even a 1" sensor digital camera.

We have seen MILC pancake glass for Sony E and Fuji X. The Sony 16/20mm lenses range from terrible to mediocre and they only cover an APS-C image circle. Fuji 18mm is better, but still not great. Samyang has a FF 24/2.8 which is small but no pancake, and it has a lot of problems. Sharp, but extreme vignetting. The way I see it, if it were possible to have made a decent short flange pancake lens we would have seen it by now.

-- hide signature --

Sometimes I take pictures with my gear- https://www.flickr.com/photos/41601371@N00/

zman2596
zman2596 Regular Member • Posts: 171
Re: Is the Canon EOS R a 1 and done

sportyaccordy wrote:

zman2596 wrote:

sportyaccordy wrote:

Glenn Haley wrote:

I use a EF 40mm f/2.8 pancake lens on an RP with adapter and get very nice results. Could you explain to me why an R FF MILC pancake lens would not perform well?

I have the 40mm too. With an adapter it's not a pancake lens anymore. It's like 45mm long in total.

Agreed. It’s still the lightest, smallest lens I I have to use on my RP for now.

I have the RF 35 1.8 as well... it's not that much bigger, and according to my scale is only about 60g heavier. For me, 60g and maybe 15mm of length is a welcome trade for more speed and better + faster AF. Not that the 40/2.8 is a bad lens though

I agree with you. I have the EF 35mm F2 IS and love it. I’m still using 5D 3 for weddings bc of two slots. When I get r5/R6 for weddings, I’ll probably switch for the RF 35mm then.

 zman2596's gear list:zman2596's gear list
Canon EOS Rebel SL1 Canon EOS RP Canon EOS R6 Canon EF 40mm f/2.8 STM Tamron SP 70-200 F2.8 G2 +7 more
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