Cooke Apotal f/10 300mm for 8x10?

[Zoltan Klinger]

I'd like to ask the experts if the f/10 300mm Cooke Apotal Process Lens will cover 8x10. Is there anybody out there using this lens on 8x10? Thanks in advance.

[Ernest Purdum]

Since you aren't getting any response, you might find a discussion of another 300mm lens for 8X10 interesting and perhaps helpful. You'll find it under "New Responses" at 2005-03-07 07:55.

[John Kasaian]

Zoltan,

I've no experience with the Apotal, but Apo lenses in general are IMHO pretty frugal when it comes to image circle. If the 300mm Cooke does cover 8x10 its a safe bet that there won't be much if any in the way of availble movements without vignetting. Many Apo process lenses do exhibit outstanding performance in other areas though. A conservative approach is to think of using APOs as long lenses, where they'll provide the opportunity to use greater movements. OTOH, my elderly 14" f/9 APO Artar does a very credible job on the 8x10 with some room for movements, at least enough for landscape work. YMMV

[Jason Greenberg Motamedi]

According to the ever useful (but sometimes wrong) Vade Mecum, your lens is a Tessar (4/3) type lens. If this is so it should cover 8x10 with good to modest movements.

[Dan Fromm]

Um, Jason, for a change the VM is right. I have a 30 cm Apotal and it is indeed a tessar type.

But since I don't have a large camera I have no good idea of its coverage. By the "image on the wall" test, it probably won't cover 8x10. This is consistent with Nikon's extremely modest claimed coverage for tessar-type (they say asymmetrical) Apo-Nikkors.

Cheers,

Dan