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PostPosted: Sat Apr 12, 2008 9:08 am 
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blackrabbit33 wrote:
...i was playing with my nikon d40...

Just a quick heads up about an issue that a number of Nikon DSLRs have when used for astrophotography. Check out my post here. The D40 isn't mentioned but you could easily check if it is affected by doing a shot of some star trails (5 minute exposures on a tripod should do it with a small enough f-number to prevent sky-glow from nearby street lamps being visible in the picture). Do one shot with the camera operating normally and once it has finished doing whatever it needs to do then give the sensor a couple of minutes to cool down and do a second shot with identical settings but trying "Mode 3" as described by Christian Buil as referenced in that post.

Of course, non of the above applies if you don't want to use the camera for long exposures. Even if you do, the Mode 3 workaround fixes the issue, albeit at the cost of some mental stress in turning the camera off while it's doing something!

Bob.

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OM-D E-M1 + ED 12-40mm f/2.8, H-F007014E, M.ZUIKO DIGITAL 45mm 1:1.8, M.ZUIKO DIGITAL ED 75mm 1:1.8, L-RS014150E.
OM-D E-M5, H-PS14042E, Gitzo GT1541T, Arca-Swiss Z1 DP ball-head.
Astrophotography: TEC 140 'scope, FLI ML16803 camera, ASA DDM60 Pro mount.


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PostPosted: Sat Apr 12, 2008 12:23 pm 
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blackrabbit33 wrote:
i was playing with my nikon d40 trying to see if it had a live veiw option but i could see anything.was i blind or does it not have one.


Nope. No live view on the d40. :(

Mark


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PostPosted: Sun Apr 13, 2008 7:50 am 
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yeah i know now i did a little bit of hunting.
shame it would have been useful but it wont stop me :)

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PostPosted: Tue Apr 15, 2008 8:51 pm 
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well ninian is most helpful. hes just looking for the right scope for me.

but in the mean time i got a tripod and remote shutter and got a much better pic.

http://farm3.static.flickr.com/2333/241 ... 12f7_b.jpg

but at 300mm with x2 tele con the moon really moves at speed. so at higher magi it look like i will need that item that tracks the object.

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http://www.shadowsandhighlights.co.uk
55-200mm
60mm macro
50mm prime
18mm-135mm


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PostPosted: Wed Jun 18, 2008 12:21 pm 
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Well i finally got my telescope yesterday.EVOSTAR-90 (EQ3-2)

most pleased. question why does the lens cap have two parts. one for a smaller hole and then one that removes the whole cap

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55-200mm
60mm macro
50mm prime
18mm-135mm


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