Using DA lenses on full-frame

scorpioh · 1st February 2008

Say Pentax comes out with full-frame in the future, can the DA lenses still be used without any crop-factor? Just to check before investing in DAs. Thanks.

knyghtfall81 · 2nd February 2008

Think there will be vignetting problems on a full frame sensor for prime lens of focal length 40mm and below (since the DA 40 is apparently fully compatible with film cameras). For zooms though, you may have vignetting problems throughout the whole range, beyond the 40mm mark. This is from experience with the sigma 17 - 70 which shows black borders on a film camera throughout its whole range on a film camera. Not sure if the DA zooms will be different.

istDeS · 2nd February 2008

I guess maybe Pentax is leaving the options open. Some of the DA lenses are actually compitable with FF. eg DA40 & 70 ltd and the coming DA*200, 300 & DA 35 ltd.

1st February 2008	#1
scorpioh Member Join Date: Jul 2007 Posts: 981	Using DA lenses on full-frame Say Pentax comes out with full-frame in the future, can the DA lenses still be used without any crop-factor? Just to check before investing in DAs. Thanks.

2nd February 2008	#2
knyghtfall81 Member Join Date: Apr 2007 Location: West of Singapore Posts: 415	Re: Using DA lenses on full-frame Think there will be vignetting problems on a full frame sensor for prime lens of focal length 40mm and below (since the DA 40 is apparently fully compatible with film cameras). For zooms though, you may have vignetting problems throughout the whole range, beyond the 40mm mark. This is from experience with the sigma 17 - 70 which shows black borders on a film camera throughout its whole range on a film camera. Not sure if the DA zooms will be different. __________________ Scene in Singapore Lens of the month: 75/2.5 Color Heliar

2nd February 2008	#3
istDeS Senior Member Join Date: Dec 2005 Location: "River end" Posts: 2,921	Re: Using DA lenses on full-frame I guess maybe Pentax is leaving the options open. Some of the DA lenses are actually compitable with FF. eg DA40 & 70 ltd and the coming DA*200, 300 & DA 35 ltd.