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First Quarter Moon – 13 April 2008
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Pixelle wrote:
Beautiful clear moon.
I can’t help but wonder though why the rotation?Which one?
I’d imagine that the idea of up or down would be pretty subjective in space-
to say nothing about trying to get a bubble level to work…Did you take it somewhere on the equator?
:twisted:
j
Ok, here’s another edit.
http://www.astroshot.com/Lunar/images/2008-04-13-First-Quarter-Moon-RevD.jpg
Any better?
That looks much better than the first two-
Have you tried any sharpening of the image-
for the one you posted here?Looks like it could benefit from a little…
j
lousy wrote:
TEC140 refractor
Very impressed with this shot and am interested in doing some of the same, but what is the above, and could you give more info on how you achieved the shot.
ThanksPat
Pat,
The TEC140 is a refractor telescope http://www.telescopengineering.com/ – 140mm diameter objective, 980mm focal length. Think of something like a canon 980mm f/7 L lens with manual focus. I sometimes used a specialised thermociooled CCD camera to capture images of faint galaxies and nebulae in space. About a dozen images were taken while fine tuning the focus and the sharpest one taken for this image. Images taken in RAW mode and then processed in PS.jb7 wrote:
That looks much better than the first two-
Have you tried any sharpening of the image-
for the one you posted here?Looks like it could benefit from a little…
j
The image brightness is slightly increased for this one too but I tried to prevent any areas getting washed out at the same time. Image is already sharpened alot and TBH I’d be reluctant to sharpen it any more. However, I really do appreciate your feedback – you’ve been very helpful. If you think of any more tips/comments, feel free to shout.
BM wrote:
I’ve been looking into frames recently. This might help
https://www.photographyireland.net/viewtopic.php?t=16255
Concerning your fascinating shot of the moon, do you need a location with low light polution? Do you typically need long exposures? If so, how do you compensate for orbit/movement?
Thanks for the link. Much appreciated.
For this image, as the Moon is extremely bright, this could easily be taken from a city centre location. For this image, I used a sub-second exposure because of the aperture used and the brightness of the image.
However, I do take images of much fainter objects which do require exposures of several minutes. For this I have a mount which can precisely track the objects across the sky.
Here’s an image of the rig:
http://www.astroshot.com/Observatory/slides/40.jpg
Note the 2 no. 9kg counterweights which counter for the weight of the telescope on the mount.Pixelle wrote:
I can’t help but wonder though why the rotation?
To me, it looks better in landscape, especially on a computer monitor.
Also, it reminds me of those images from the Apollo era, in paricular the “earthrise” photograph.
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