It seems possible that the resolving power of the FE 200-600mm is simply approaching the resolution of the a7RIV sensor. I find the a7RIII challenging enough to shoot due to the high resolution sensor. 60+ megapixels seems like it must be much less forgiving.
While I don't rule out the possibility of some weird hardware or software conflict between the 200-600 and a7RIV, it just seems really unlikely.
Every lens has some ultimate resolving power limit. It is rare for any manufacturer to admit that or quantify it. A Fuji manager did recently make an offhand remark that most their current lenses are "are good for about 32 megapixels". Now my questionable equivalency math says that equates to ~64 megapixels of full frame sensor area. My opinion is that most of the higher grade Fuji and Sony lenses are roughly equivalent in optical quality. (I own both systems so don't be too quick to flame me) So I don't think it is a stretch to speculate that Sony lenses may have a resolving limit of somewhere in the 64 megapixel range. That is really close to what the a7RIV is capable of.
It seems possible that the resolving power of the FE 200-600mm is simply approaching the resolution of the a7RIV sensor. I find the a7RIII challenging enough to shoot due to the high resolution sensor. 60+ megapixels seems like it must be much less forgiving.
While I don't rule out the possibility of some weird hardware or software conflict between the 200-600 and a7RIV, it just seems really unlikely.
Every lens has some ultimate resolving power limit. It is rare for any manufacturer to admit that or quantify it. A Fuji manager did recently make an offhand remark that most their current lenses are "are good for about 32 megapixels". Now my questionable equivalency math says that equates to ~64 megapixels of full frame sensor area. My opinion is that most of the higher grade Fuji and Sony lenses are roughly equivalent in optical quality. (I own both systems so don't be too quick to flame me) So I don't think it is a stretch to speculate that Sony lenses may have a resolving limit of somewhere in the 64 megapixel range. That is really close to what the a7RIV is capable of.
It seems possible that the resolving power of the FE 200-600mm is simply approaching the resolution of the a7RIV sensor. I find the a7RIII challenging enough to shoot due to the high resolution sensor. 60+ megapixels seems like it must be much less forgiving.
While I don't rule out the possibility of some weird hardware or software conflict between the 200-600 and a7RIV, it just seems really unlikely.
Every lens has some ultimate resolving power limit. It is rare for any manufacturer to admit that or quantify it. A Fuji manager did recently make an offhand remark that most their current lenses are "are good for about 32 megapixels". Now my questionable equivalency math says that equates to ~64 megapixels of full frame sensor area. My opinion is that most of the higher grade Fuji and Sony lenses are roughly equivalent in optical quality. (I own both systems so don't be too quick to flame me) So I don't think it is a stretch to speculate that Sony lenses may have a resolving limit of somewhere in the 64 megapixel range. That is really close to what the a7RIV is capable of.
May 09, 2020 at 02:59 PM
Previous versions of jeffbuzz's message #15222929 « Giving up on a7RIV and 200-600 :-( »
