I have quite a mundane question that as a group, we are split on. Under
the naming convention for OCT, do we enter the applicants birthday or is
1-1-1900 simply used as a signifier to satisfy the software requirements.
Thanks
Steve Lusk, CRA
Vistar Eye Center Retina Consultants
5296 Peters Creek Road
Roanoke, VA 24019
Phone: (540) 342-3400 ext. 4731
Fax: (540) 362-1155
slusk@xxxxxxxxxxxxx
www.vistareye.com
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-----Original Message-----
From: optimal-bounce@xxxxxxxxxxxxx on behalf of aissa9400@xxxxxxxxx
Sent: Sun 8/10/2014 10:00 AM
To: optimal@xxxxxxxxxxxxx
Subject: [optimal] Re: Photographing techniques using a Zeiss 2x
magnification lens
James,
I figured that. I'm going to try everyone's suggestions this week and
hopefully my eyes will cooperate.
A.D. sent by iPhone
> On Aug 10, 2014, at 9:00 AM, JamesStrong <jamesdstrong@xxxxxxxxx> wrote:
>
> FWIW - changing settings on the camera body will have no affect on
focus/parfocality - it's an optics issues.
>
> j-
>
>
>> On Sat, Aug 9, 2014 at 11:22 AM, Eric Kegley <ekegley@xxxxxxxxxxxxxxxxx>
wrote:
>> Because the mag is higher, it is very important that your image is as
sharp as possible trough the eyepiece. Also, you said something about the
diopter compensation wheel being as plus as possible. You shouldn't have
to change that unless your subject is very hyperopic. My advice would be to
make sure your reticle is very well focused and then focus carefully on the
center of the frame.
>>
>> Thanks,
>> EK
>>
>> Eric Kegley, CRA, COA
>> Director of Ophthalmic Imaging
>> 6560 Fannin St., Suite 750
>> Houston, TX 77030
>> Main 713 524-3434
>>
>> Sent from my iPhone
>>
>>> On Aug 9, 2014, at 9:31 AM, Marshall Tyler <marshalletyler@xxxxxxxxx>
wrote:
>>>
>>> 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
>
