Roger Willco
Member
The Biogen 21, 25 and 28 and the Sonnar 50 all have 46mm filter sizes.
Would it be possible to use the lens shade made for the Biogen 28 on the Sonnar 50? It may not provide as much flare protection as the shade made for the Sonnar 50, but it would provide physical protection for the lens front.
Would it be possible to use the lens shade made for the Biogen 28 on the Biogen 21 or 25 when these lenses are used on a Leica M8? Based on the cropping factor of the M8, it seems like these lens shades shouldn't cause vignetting.
Is there a generic snap-in lens cap that has the correct diameter to fit the inside diameter of the lens shade at its front edge? Or, is there a generic push-on lens cap that has the correct diameter to fit the outside of the Zeiss lens shade (like the push-on Voigtlander caps)?
Thanks,
Rog
Would it be possible to use the lens shade made for the Biogen 28 on the Sonnar 50? It may not provide as much flare protection as the shade made for the Sonnar 50, but it would provide physical protection for the lens front.
Would it be possible to use the lens shade made for the Biogen 28 on the Biogen 21 or 25 when these lenses are used on a Leica M8? Based on the cropping factor of the M8, it seems like these lens shades shouldn't cause vignetting.
Is there a generic snap-in lens cap that has the correct diameter to fit the inside diameter of the lens shade at its front edge? Or, is there a generic push-on lens cap that has the correct diameter to fit the outside of the Zeiss lens shade (like the push-on Voigtlander caps)?
Thanks,
Rog