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Gibbous Moon, 6/19/2013


Mystic, US
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gvk Silver Member Nikonian since 16th Feb 2006
Thu 20-Jun-13 04:07 AM | edited Thu 20-Jun-13 11:41 PM by gvk

We finally had a clear night in NY, and I took the opportunity once again to try some shots of the gibbous Moon.

The first photo was taken using a D800E mounted on a Questar 3-1/2 inch telescope with an F-mount adapter. Focal length is estimated at approximately 1500 mm at about f/16. To minimize motion blur I had to use relatively high ISO and shoot at shutter speeds over 1/200, even using live view or mirror-up mode. This shot was taken at 1/400, ISO 1600, and cropped to about 70% of the original frame height.

The second shot was taken using a Nikon V1 on the Questar with FT-1 and F-mount adapters, again at about 1500 mm and f/16. With the lighter V1 and electronic shutter the setup was more stable, and I was able to get this shot at ISO 200 and 1/100.

In addition to the greater magnification provided by the telescope, the second photo appears to have slightly higher resolution than images in the "Waxing Moon with V1" thread, taken using a 300 mm f/2.8 VR with a TC-20E III (with physical aperture size similar to the telescope).

As usual, full size photos can be viewed at my Smugmug site.


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