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FORUMS Photography Talk by Genre Astronomy & Celestial Talk 
Thread started 11 Aug 2014 (Monday) 11:53
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Why are my super moon shots out of focus?

 
Gary ­ Wiant
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Aug 11, 2014 11:53 |  #1

I have tried a couple times now and I always get out of focus shots. Here is my gear and Process

1D Mark III
Canon 70-200 2.8 IS II
Canon 1.4x III Extender
borrowed Canon 2x II extender
Remote Shutter release
Slik Tripod with Manfrotto head

My settings have been ISO 100, 200 & 400
I've tried F-Stops from f8 to f11
Shutter Speeds from 1/60 - 1/250

I have tried AF and Manual Focus with the IS turned on and turned off. all of the other types of photography I've tried I have had very sarp shots so these being out of focus really have me scratching my head.


Gary Wiant
1D mk IV - 1D mkIII - Eos- M - 70-200mm F2.8 IS Mk II - 24-105L f4 - 50 f1.4 - 100 2.8 Macro - M22mm - M18-55 - Canon Ef-Ef-s to M converter - 1.4x VIII & 2x VII extenders - 540EXII Flash, Flash Zebra SF-18 Ext. Battery Pack, Kenko Extension Tubes - Manfroto Macro Bracket - Lensalign Flickr (external link)

  
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maverick75
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Aug 11, 2014 12:02 |  #2

Can you post an example?

On a tripod I've gone as slow as 1/10 and gotten crisp shots, you're doing everything correctly.

Maybe you're loosing infinity focus due to a faulty teleconveter, how does it do in daytime shots with other things like birds?


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electricme
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Aug 11, 2014 12:07 |  #3

Your Manually focusing right?




  
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Tom ­ Reichner
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Aug 11, 2014 12:16 |  #4

I am a bit confused by the title of this thread. If your shots are not in focus, what is it about them that makes them "super"?

Are you stacking the 1.4 and the 2x extenders? Have you done this with your other photography, in which you say you are always able to get sharp shots? If you are stacking converters, I think that right there is your problem.


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maverick75
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Aug 11, 2014 12:18 |  #5

Tom Reichner wrote in post #17089317 (external link)
I am a bit confused by the title of this thread. If your shots are not in focus, what is it about them that makes them "super"?


He was referring to the summer moon, which is often refereed to as a "super moon" because it's when it's the closest and appears bigger.

Tom Reichner wrote in post #17089317 (external link)
Are you stacking the 1.4 and the 2x extenders? Have you done this with your other photography, in which you say you are always able to get sharp shots? If you are stacking converters, I think that right there is your problem.

I've stacked a pair of 2x teleconverters with no issues. Retains infinity and with stacking still gives high IQ shots...


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Biffbradford
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Aug 11, 2014 12:28 |  #6

Post a shot. Are they truly out of focus, or are you still getting a little camera shake?


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Gary ­ Wiant
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Aug 11, 2014 14:50 |  #7

I'm doing both Manual and auto focus

I'll post a couple when I get home from work if I didn't delete them all

Thanks
Gary


Gary Wiant
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Gary ­ Wiant
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Aug 11, 2014 21:37 |  #8

PHOTOBUCKET EMBEDDING IS DISABLED BY THIS MEMBER.
Photobucket sends ads instead of embedding photos from their free galleries.
Click the link (if available) below to see the image in a gallery page.

http://i1270.photobuck​et.com …014-280-2_zpscw2qvkpe.jpg (external link)

This is pretty typical of what I've been getting.
I have shot with the 1.4 by itself and had sharp images.

Gary Wiant
1D mk IV - 1D mkIII - Eos- M - 70-200mm F2.8 IS Mk II - 24-105L f4 - 50 f1.4 - 100 2.8 Macro - M22mm - M18-55 - Canon Ef-Ef-s to M converter - 1.4x VIII & 2x VII extenders - 540EXII Flash, Flash Zebra SF-18 Ext. Battery Pack, Kenko Extension Tubes - Manfroto Macro Bracket - Lensalign Flickr (external link)

  
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Niteclicks
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Aug 12, 2014 10:13 as a reply to  @ Gary Wiant's post |  #9

At the distance to the moon every thing from about 10 mile to infinite will be in focus, so no need for f8-f11. At that distance any vibration is large and will show. Using a tripod you still need to get the shudder speed up and use the timer or a wireless remote and mirror lock up ( just moving the wire at high mag can cause vibrations. I hope this helps.
Steve




  
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maverick75
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Aug 12, 2014 12:33 |  #10

It doesn't really look that out of focus, I think it's just the quality loss between the teleconverter and having to shoot through the atmosphere.

Try stacking software. That's the key to getting the most detail, even more so than having a super sharp lens.

http://photographyblog​ger.net …ike-an-astrophotographer/ (external link)


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LV ­ Moose
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Aug 12, 2014 12:51 |  #11

Niteclicks wrote in post #17091091 (external link)
At the distance to the moon every thing from about 10 mile to infinite will be in focus, so no need for f8-f11.
Steve

Most lenses are sharper stopped down to around f/8 than they are wider open


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Gary ­ Wiant
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Aug 12, 2014 13:02 |  #12

Thanks everyone for the responses I'll try again, maybe on a clearer night. Although it was called a Super Moon it didn't seem much bigger or brighter then any other moon.

Thanks
Gary


Gary Wiant
1D mk IV - 1D mkIII - Eos- M - 70-200mm F2.8 IS Mk II - 24-105L f4 - 50 f1.4 - 100 2.8 Macro - M22mm - M18-55 - Canon Ef-Ef-s to M converter - 1.4x VIII & 2x VII extenders - 540EXII Flash, Flash Zebra SF-18 Ext. Battery Pack, Kenko Extension Tubes - Manfroto Macro Bracket - Lensalign Flickr (external link)

  
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Biffbradford
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Aug 12, 2014 13:04 |  #13

I bet it's the double extender combo. Just too much glass between the sensor and the moon. Try again when you've got some shadows on the craters to give you a better sense of depth rather than just the flat disc.


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LV ­ Moose
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Aug 12, 2014 13:07 |  #14

Biffbradford wrote in post #17091381 (external link)
I bet it's the double extender combo. Just too much glass between the sensor and the moon.

That's what I'm thinking as well.


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hollis_f
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Aug 13, 2014 06:06 |  #15

Niteclicks wrote in post #17091091 (external link)
At the distance to the moon every thing from about 10 mile to infinite will be in focus, so no need for f8-f11.

An f2.8 lens with a 1.4x TC stacked with a 2x TC will be f8 wide-open.


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Why are my super moon shots out of focus?
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