Chose Nikon SB-25 for my flash

[tempest68]

I decided to buy a Nikon SB-25 as my flash for my Voigtlander R3M. I hope I made the right choice. It looks like I should be able to manually set it to the ISO, focal length and f-stop I'm using and it should tell me the distance covered. I looked but it doesn't look like my Yongnuo 565EX II lets me do that.

One question: if it only has settings for 35mm and 50mm focal lengths, which one should I pick when using my CV Nokton 40mm? I'm guessing 35.

 

[nikon_sam]

I find the SB-25 works most consistently in Manual Mode...
I also agree for a 40mm lens set it to 35mm
Do as much testing with it beforehand...

 

[tempest68]

Actual testing on the R3M may be difficult at first. Currently running B&W film through it, and the local camera store doesn't develop it but sends it out for the developing (I'm just glad they DO E-6 locally). Maybe I should test out on my Canon 5D II setting ISO, aperture, shutter speed and using CV Ultron 40mm to see the results. I guess it should be similar to the R3M results.