No EOS 5DS & EOS 5DS R Replacements in 2017 [CR2]

[AlanF]

I hope I did not make a mistake to order a 5DsR. I intend to replace my 7DII with it for bird shooting (mostly to be able to aim the flying birds with my 500mm and for some IQ increase). I have the 5DIV but I use it for low light mostly.

I have both the 5DSR and 5DIV. I absolutely love the 5DSR for bird photography for the extra reach and clarity from absence of AA filter. You have not made a mistake, in terms of IQ and AF, it's a real improvement from the 7DII.

Question for you, not sure if you know or not, but - which is sharper, 5D4 + 1.4x extender or 5DSR w/bare lens? Or, even 5D4 + 2x vs 5DSR w/1.4x?

It's something I know well from 100s of comparisons - the 5DSR is sharper with a bare lens vs 1.4xTC on 5DIV and with a 1.4xTC vs 2x on 5DIV.

There are good reasons for this. The advantages of the 5DSR are smaller pixels and absence of AA filter for resolution. The disadvantages are that the smaller pixels are more susceptible to shake and are noisier. But, if you put a 1.4xTC on a lens, the 40% increase in length increases the shake and the loss of a stop increases the noise, cancelling out the advantage of the larger pixels. The 1.4xTC does give some degradation of image and the 2xTC even more so.

 

[Deleted member 7828]

I hope I did not make a mistake to order a 5DsR. I intend to replace my 7DII with it for bird shooting (mostly to be able to aim the flying birds with my 500mm and for some IQ increase). I have the 5DIV but I use it for low light mostly.

I have both the 5DSR and 5DIV. I absolutely love the 5DSR for bird photography for the extra reach and clarity from absence of AA filter. You have not made a mistake, in terms of IQ and AF, it's a real improvement from the 7DII.

Question for you, not sure if you know or not, but - which is sharper, 5D4 + 1.4x extender or 5DSR w/bare lens? Or, even 5D4 + 2x vs 5DSR w/1.4x?

It's something I know well from 100s of comparisons - the 5DSR is sharper with a bare lens vs 1.4xTC on 5DIV and with a 1.4xTC vs 2x on 5DIV.

There are good reasons for this. The advantages of the 5DSR are smaller pixels and absence of AA filter for resolution. The disadvantages are that the smaller pixels are more susceptible to shake and are noisier. But, if you put a 1.4xTC on a lens, the 40% increase in length increases the shake and the loss of a stop increases the noise, cancelling out the advantage of the larger pixels. The 1.4xTC does give some degradation of image and the 2xTC even more so.

Wow, that's interesting.

I'd figure the greater demands of the 50 MP sensor on the lens would also cause some degradation of IQ (viewed at 100%, that is, which is an important point given extensive cropping) but interesting note that the TC has a greater effect.

 

[tron]

I hope I did not make a mistake to order a 5DsR. I intend to replace my 7DII with it for bird shooting (mostly to be able to aim the flying birds with my 500mm and for some IQ increase). I have the 5DIV but I use it for low light mostly.

I have both the 5DSR and 5DIV. I absolutely love the 5DSR for bird photography for the extra reach and clarity from absence of AA filter. You have not made a mistake, in terms of IQ and AF, it's a real improvement from the 7DII.

Question for you, not sure if you know or not, but - which is sharper, 5D4 + 1.4x extender or 5DSR w/bare lens? Or, even 5D4 + 2x vs 5DSR w/1.4x?

It's something I know well from 100s of comparisons - the 5DSR is sharper with a bare lens vs 1.4xTC on 5DIV and with a 1.4xTC vs 2x on 5DIV.

There are good reasons for this. The advantages of the 5DSR are smaller pixels and absence of AA filter for resolution. The disadvantages are that the smaller pixels are more susceptible to shake and are noisier. But, if you put a 1.4xTC on a lens, the 40% increase in length increases the shake and the loss of a stop increases the noise, cancelling out the advantage of the larger pixels. The 1.4xTC does give some degradation of image and the 2xTC even more so.

OK Alan my 5DsR arrived just in time for my vacation. I did not have time to do AFMA (apart from some rough - non-scientific one). Now where are the birds that do modeling? ;D ;D ;D