All Forum Comments
Quote:
Thanks for finding the error guys.
My eBook has since been amended to reflect the demosaic error.
Thanks Jalex your book is very helpful Thanks for finding the error guys.
My eBook has since been amended to reflect the demosaic error.
Comment by Clarky posted on Silkypix book at 16/04/2008 - 11:43
Thanks for that George, I will download it.
I hope you feel better after your visit to Depressingreview
I hope you feel better after your visit to Depressingreview
Comment by Clarky posted on Silkypix book at 29/03/2008 - 12:50
Thanks Chris, Shrinking it down certainly makes a difference
The one at 6.3, 1/180 is over exposed and i have another at 6.3 with the exposure at 1/250 but it looks dark and possibly OOF also.
I found if you focus on the dark shades of the moon or the lighter shades, you end up with a vastly different shot each time.
I guess its a trial and error thing when shooting this type of thing and it all comes with experience
The one at 6.3, 1/180 is over exposed and i have another at 6.3 with the exposure at 1/250 but it looks dark and possibly OOF also.
I found if you focus on the dark shades of the moon or the lighter shades, you end up with a vastly different shot each time.
I guess its a trial and error thing when shooting this type of thing and it all comes with experience
Comment by Clarky posted on Easter on the Coast at 30/03/2008 - 10:46
Quote:
Why f13?
Surely f5.6 at 1/250 would have been better. But I'm no astrotog.
G
f6.3 would have been wide open at 500mm and i tried a few wide open with no better results Why f13?
Surely f5.6 at 1/250 would have been better. But I'm no astrotog.
G
Heres one wide open @ 6.3, 1/180 iso @ 200
I could have tried a lot more combo,s and George i am no expert on astrology photography either and i was constantly chopping and changing settings
Comment by Clarky posted on Easter on the Coast at 30/03/2008 - 02:45
Quote:
If so, try shrinking it to about 4/5 of that size (using 'bicubic sharper'), and applying just a tiny bit of USM - 75/1/1 for instance.
I think you'll be pleased - I don't think it gets much better than that without a telescope.
No sharpening was applied. Clarky wrote:
I could see a definite shake in the view finder following the 2 second delay when the mirror came back down. Not sure if that would have an effect or not
Well, by the time you get the bang and shake from the mirror coming down, the shutter is long since shut, so no it wouldn't.I could see a definite shake in the view finder following the 2 second delay when the mirror came back down. Not sure if that would have an effect or not
Quote:
I was focusing directly on the moon using auto and manual focus.
I took about 10 shots at various settings and couldn't get it any better
than what i am showing.
Is that second one unsharpened?I was focusing directly on the moon using auto and manual focus.
I took about 10 shots at various settings and couldn't get it any better
than what i am showing.
If so, try shrinking it to about 4/5 of that size (using 'bicubic sharper'), and applying just a tiny bit of USM - 75/1/1 for instance.
I think you'll be pleased - I don't think it gets much better than that without a telescope.
I will give your recommendations a try. Thanks for that.
Comment by Clarky posted on Easter on the Coast at 29/03/2008 - 22:09
Quote:
Having had several attempts at this shot myself, albeit with only 400mm, I'd say that 1/45 is a little on the slow side, especially since the shot looks a little overexposed to me.
In my experience, focus confirmation from the camera is not enough to guarantee that the focusing is as perfect as it can be, and the longer the focal length, the shorter exposure you need to guarantee no movement blur.
Assuming you were using the 2s or 3s mirror up delay, I'd guess that these are more likely to be responsible for the slight lack of sharpness than the tripod.
Thanks Chris. I should have included the exif infoClarky wrote:
Its not the sharpest shot and if i had taken my 055proB tripod instead of my cheap rubbish one, I am sure it would have made all the difference.
I've seen a Bigma shot of the moon over at Pentaxforums.com that was a bit crisper than this one, so I'd say that although this isn't at all bad, you can still get it better.Its not the sharpest shot and if i had taken my 055proB tripod instead of my cheap rubbish one, I am sure it would have made all the difference.
Having had several attempts at this shot myself, albeit with only 400mm, I'd say that 1/45 is a little on the slow side, especially since the shot looks a little overexposed to me.
In my experience, focus confirmation from the camera is not enough to guarantee that the focusing is as perfect as it can be, and the longer the focal length, the shorter exposure you need to guarantee no movement blur.
Assuming you were using the 2s or 3s mirror up delay, I'd guess that these are more likely to be responsible for the slight lack of sharpness than the tripod.
expo. 1/45sec
f13
iso 100
I was using the 2 second delay with a tethered remote.
The moon had that yellow tinge to it, and i probably didn't do a very good job of de-warmifing it and i ended up giving it an over exposed look.
Here is another one with the exception of the Exposure @ 1/60sec and i left the yellow tinge as it was taken.
I could see a definite shake in the view finder following the 2 second delay when the mirror came back down. Not sure if that would have an effect or not
I was focusing directly on the moon using auto and manual focus.
I took about 10 shots at various settings and couldn't get it any better
than what i am showing. :
Comment by Clarky posted on Easter on the Coast at 29/03/2008 - 21:54
Quote:
Very nice, Clarky, and I think your first one proves my long-held contention that the moon isn't made from green cheese.
It's quite obviously a petrified orange. You can see the segments clearly, and the place where the stalk joined the fruit.
G
My secret is out You have to get up pretty early in the morning to fool you George Very nice, Clarky, and I think your first one proves my long-held contention that the moon isn't made from green cheese.
It's quite obviously a petrified orange. You can see the segments clearly, and the place where the stalk joined the fruit.
G
Its not the sharpest shot and if i had taken my 055proB tripod instead of my cheap rubbish one, I am sure it would have made all the difference.
Comment by Clarky posted on Easter on the Coast at 29/03/2008 - 12:39
I spent a few days down the coast over Easter and took these shots at early sunrise
Taken with the Bigma
Taken with the DA*16-50
Also taken with DA*16-50
Taken with the Bigma
Taken with the DA*16-50
Also taken with DA*16-50
Comment by Clarky posted on Easter on the Coast at 29/03/2008 - 10:55
Surely thats an error
Dan