[optimal] Re: Photographing techniques using a Zeiss 2x magnification lens
- From: Marshall Tyler <marshalletyler@xxxxxxxxx>
- To: optimal@xxxxxxxxxxxxx
- Date: Sat, 9 Aug 2014 09:31:31 -0400
Are the eyepiece sharp at the same time as the image is sharp?
Try a test target of a ruler or sm as 'll printed text which you tilt
relative to the plane of focus. It should be sharp in the center. If sharp
closer or further away you have a focusing problem. If is not sharp
anywhere you may have a lens/system problem.
Thank you,
Marshall
Marshall E Tyler
On Aug 8, 2014 11:09 PM, <aissa9400@xxxxxxxxx> wrote:
> Thanks Jeremy for the eye opener. I hope it's not a waste $ for the lens.
>
> I've changed the compensation lens to the highest plus mag on the FF4 and
> turn the dial all the way. The image looked clearer but no cigar. I'm going
> to try and change the setting on the 6D itself to macro, not sure what will
> happen and if it will even let me change the setting while it's connected
> to the PC.
>
> I would like more input on my thoughts if possible.
>
> Aissa
>
> A.D. sent by iPhone
>
>
> On Aug 8, 2014, at 10:16 PM, Jeremy Pantell <jpantell@xxxxxxxxxxxxx>
> wrote:
>
> HI AISSA! I guess the question is whether the Canon 6D/Zeiss 2X adapter
> will "parfocal" with the Zeiss eyepiece. I would focus off your monitor
> while trying to come up with a better solution. When using the 2X with a
> film setup there was no particular magic about it. Just focus very
> carefully and compose within the viewfinder grid. Good patients would
> yield very nice results.
>
> sincerely, jeremy p. pantell bfa cra
>
>
> On Friday, August 8, 2014 4:06 PM, Aissa Dirawatun <aissa9400@xxxxxxxxx>
> wrote:
>
>
> Hello everyone,
>
> Our practice purchased a Zeiss 2x lens adapter for our FF4 (w/ Canon 6D)
> camera to use for ONH pictures. I'm having trouble focusing the image. I
> need your advice.
>
> Thank you!
>
> Aissa Dirawatun, COA
> Ophthalmic Photographer/Technician
> Virginia Retina Center
> 20 Rock Pointe Lane Suite 20
> Warrenton, VA 20155
>
> --
> *"Reading makes immigrants of us all. It takes us away from home, but more
> important, it finds homes for us everywhere." ~ **Jean Rhys 1890-1979*
>
>
>
>
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