I used to use a Canon 6D with NFK2.5X on an Olympus Bh2.
Now I've traded all my FF cameras for a Gh5 and want to use it
on my microscope. The Gh5 has a 2X crop factor, so I would
like to try the Oly 1.67NFK + a .71X Metabones Speed Booster.
Should get me back to ~ field of view I had before. I wonder
if image quality will suffer? Anyone used SpeedBooster on a scope?
The Gh5 has full electronic shutter (no vibration) and makes
fantastic video compared to Canon. So I hope this might work.
Thanks, John
Metabones adapter for micro4/3 on microscope?
Moderators: rjlittlefield, ChrisR, Chris S., Pau
I have the Metabones Speedbooster. I don't shoot afocally so I can't speak directly to your point, but in the infinity-corrected world it is not useful; you get better results just using a shorter tube lens. It can be useful for finite lenses that have big image circles but a high degree of optimization for a particular magnification.
Metabones adapter for micro4/3 on microscope?
Alan: The 1.67 NFK (that I do have) will be projecting onto MFT sensor (18mm x 12mm), so should spill over the edges quite a bit. Yes? So I think I have to squeeze the extra spill-over data back down to 18x12, hence the .7X speedbooster idea.
Lou: The Bh2 with my optics is not infinity corrected. It uses various projection lenses (3.3x, 2.5, 1.67x). Have you used speedbooster on your scope?
Thanks, John
Lou: The Bh2 with my optics is not infinity corrected. It uses various projection lenses (3.3x, 2.5, 1.67x). Have you used speedbooster on your scope?
Thanks, John
Metabones adapter for micro4/3 on microscope?
Hi Alan,
I took the plunge and ordered a metabones .71X speed booster.
It works great on Bh2 with 1.67X NFK! Matches ocular field of view
almost exactly, and corner sharpness is equal to center sharpness (by
my eye anyway on full HDMI output to 2.5K screen). The MFT Gh5 images appear even a little better than my old full-frame 6D + 2.5NFK setup. Video will be far superior. I am excited!
John
I took the plunge and ordered a metabones .71X speed booster.
It works great on Bh2 with 1.67X NFK! Matches ocular field of view
almost exactly, and corner sharpness is equal to center sharpness (by
my eye anyway on full HDMI output to 2.5K screen). The MFT Gh5 images appear even a little better than my old full-frame 6D + 2.5NFK setup. Video will be far superior. I am excited!
John