DSLR Focus confirm with MF lenses

[viix]

I've alway been used to split screen focusing on my x700 minolta, but on a DSLR, do we get a green focus confirm in the viewfinder when using an AIS lens? I understand there will be non for the older non AIS version but AIS?

Also are they any focus screens that can be adapted to the D90?
How do you guys guage focus via a viewfinder besides seeing it sharp? I'm sure there's some method the MFs user use?

[lsisaxon]

Originally Posted by viix I've alway been used to split screen focusing on my x700 minolta, but on a DSLR, do we get a green focus confirm in the viewfinder when using an AIS lens? I understand there will be non for the older non AIS version but AIS? Also are they any focus screens that can be adapted to the D90? How do you guys guage focus via a viewfinder besides seeing it sharp? I'm sure there's some method the MFs user use?

Yes. the green dot works for all lenses with maximum aperture faster than f/5.6. You can eith get katzeyeoptics focusing screen or ask Orient Photo if they have China made screens for D90 (I believe they should be similar to D80 screens if not identical), or you can use liveview to focus.

[Daedalus Trent]

Originally Posted by lsisaxon Yes. the green dot works for all lenses with maximum aperture faster than f/5.6. You can eith get katzeyeoptics focusing screen or ask Orient Photo if they have China made screens for D90 (I believe they should be similar to D80 screens if not identical), or you can use liveview to focus.

woah...so for lenses slower than f/5.6, boh effect?

[lsisaxon]

Originally Posted by Daedalus Trent woah...so for lenses slower than f/5.6, boh effect?

Even with split image, the prisms will darken if you use a slow lens.

[viix]

Originally Posted by lsisaxon Yes. the green dot works for all lenses with maximum aperture faster than f/5.6. You can eith get katzeyeoptics focusing screen or ask Orient Photo if they have China made screens for D90 (I believe they should be similar to D80 screens if not identical), or you can use liveview to focus.

Thanks, good to know it works as I'm waiting for my voigtlander 58mm f1.4 from chiif

Originally Posted by Daedalus Trent woah...so for lenses slower than f/5.6, boh effect?

On MF cameras with split image focusing, any long lens with f5.6 and above is very dark thru the viewfinder.. hard to focus (and hold at the same time) if you don't have an edge/contrast line to focus on so I'd expect AF confirm with the sensors of modern cam will be erratic also..

[Daedalus Trent]

oic

thanks for clarifying, you two