10-20-2010, 05:58 PM
[quote name='genotypewriter' timestamp='1287575306' post='3707']
Tells us how the LoCA is when you get to use it...
GTW
[/quote]
I haven't done any controlled tests with it yet, but it seems promising for LoCA wide open. It does have a big dose of "glow" though, but I'd expect that to clear up stopped down a bit.
I also need to modify it so the aperture ring works since it is not directly connected. If nothing else I'm learning how FD mount works <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/biggrin.gif' class='bbc_emoticon' alt='B)' /> I know what to do, just haven't done it yet.
My initial test involved taping the lens to a cheap extension ring mount so I can connect it to a camera. This is quite some mm of extension so my maximum focus distance was 40-50cm or so. I'm not sure how messy it will be to modify the distance to obtain infinity focus as I think it will require cutting into the lens body. My alternate plan is recycling the mount of another broken lens which will have in total some 3mm extension getting me out to about 1m maximum focus distance, which should be ok for my application.
I was never good at mechanical modifications though...
Tells us how the LoCA is when you get to use it...
GTW
[/quote]
I haven't done any controlled tests with it yet, but it seems promising for LoCA wide open. It does have a big dose of "glow" though, but I'd expect that to clear up stopped down a bit.
I also need to modify it so the aperture ring works since it is not directly connected. If nothing else I'm learning how FD mount works <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/biggrin.gif' class='bbc_emoticon' alt='B)' /> I know what to do, just haven't done it yet.
My initial test involved taping the lens to a cheap extension ring mount so I can connect it to a camera. This is quite some mm of extension so my maximum focus distance was 40-50cm or so. I'm not sure how messy it will be to modify the distance to obtain infinity focus as I think it will require cutting into the lens body. My alternate plan is recycling the mount of another broken lens which will have in total some 3mm extension getting me out to about 1m maximum focus distance, which should be ok for my application.
I was never good at mechanical modifications though...
<a class="bbc_url" href="http://snowporing.deviantart.com/">dA</a> Canon 7D2, 7D, 5D2, 600D, 450D, 300D IR modified, 1D, EF-S 10-18, 15-85, EF 35/2, 85/1.8, 135/2, 70-300L, 100-400L, MP-E65, Zeiss 2/50, Sigma 150 macro, 120-300/2.8, Samyang 8mm fisheye, Olympus E-P1, Panasonic 20/1.7, Sony HX9V, Fuji X100.