Search found 4 matches

by karlmera
26.10.2012 11:29
Forum: Helicon Remote
Topic: effective or nominal
Replies: 8
Views: 5603

Re: effective or nominal

Do I need a software update, do you have one?
by karlmera
02.10.2012 16:46
Forum: Helicon Remote
Topic: effective or nominal
Replies: 8
Views: 5603

Re: effective or nominal

There is a big difference between Nikon and Canon. At 1:1 Nikon shows the effective aperture of 4,8 with the AF-S 60mm(nominal it would be 2,8, the same like at infinity). And here Canon shows 2,8, but it is effectively 4,8 or 5,6. If you choose 8 with Canon, you have effective 16. If you choose 8 w...
by karlmera
01.10.2012 15:47
Forum: Helicon Remote
Topic: effective or nominal
Replies: 8
Views: 5603

Re: effective or nominal

Yes, that is right. But Nikon reports the effective aperture and Canon shows the nominal aperture. Is your calculation of the dof and the correction factor based on the effective or nominal apertures? The values of Nikon an Canon would be different.
by karlmera
29.09.2012 16:44
Forum: Helicon Remote
Topic: effective or nominal
Replies: 8
Views: 5603

effective or nominal

Is the calculation of dof based on the shown effective aperture of the Nikon AF-S 60mm or on the nominal aperture?