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FORUMS Photo Sharing & Visual Enjoyment Astronomy & Celestial
Thread started 31 Dec 2009 (Thursday) 21:07
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The Official Shoot the Moon Thread

 
WestCoastCannuck
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Joined Jan 2017
Victoria, Canada
Oct 07, 2017 23:03 |  #4666

IMAGE: https://farm5.staticflickr.com/4500/37251302210_59dce81c56_b.jpg
[IMAGE'S LINK: https://flic.kr/p/YKLE​kd] (external link)Moon 10-03-2017 (external link) by Mike Nash (external link), on Flickr

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A99ii|Tam15-30|M28-135|M35-105|M80-200G|SAL70400G|Σ50 1.4|CZ135/1.8|Minolta 300/2.8|Minolta 400/4.5

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Tareq
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Ajman - UAE
Oct 08, 2017 12:11 |  #4667

Roy A. Rust wrote in post #18468169 (external link)
First: Thanks for the compliment about the images. To get the posted pictures into my gallery, it's necessary to select a lens from the choices POTN offers. But telescopes aren't listed in the choices for the lens used, so I picked a lens that was obviously not what I had used. I used the Meade ETX 125 telescope.

Second: You're right! The telescope with the short T-Adapter for my camera has a 1900mm focal length, but the adapter has an extension tube that increases the focal length to 2310mm. Then, I added a 1.4x teleconverter to that, which increased the focal length to 3234mm.

The image below is a screen capture from the manual for the Meade ETX telescopes, with the focal lengths listed with the short adapter and with the extension inserted... And that's how my photos were taken at 2310mm and 3234mm focal lengths. Also, the focal lengths given in the manual are for 35mm cameras. Since my camera has a smaller sensor, it has a 35mm equivalent conversion factor of 1.5... So if that is factored in, the 2310mm focal length converts to 3465mm, and the 3234mm focal length is equivalent to a photo taken with a 4851mm telephoto lens on a 35mm camera!!! The numbers just keep getting bigger and bigger.
thumbnailHosted photo: posted by Roy A. Rust in
./showthread.php?p=184​68169&i=i69348620
forum: Astronomy & Celestial

Thank you very much for your explanation!

This is the first time i know about that extension tube can increase the focal length, in astronomy gear i know that only a Barlow can increase the focal length of the telescope not the extension tubes.

Second, i didn't know that you can use a Teleconverter with a telescope, but no wonder as long you use a Canon DSLR then tha won't be a problem, i use an astro camera so only Barlow can be used here if i use a telescope, unless if i use a teleconverter with Canon lenses then i can use a T-adapter in this case.

I am not good in those calculations, so good image and well done with whatever gear you use, soon i will do the same too.


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Ben ­ in ­ San ­ Diego
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Oct 09, 2017 13:56 |  #4668

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[IMAGE'S LINK: https://flic.kr/p/C3eh​Nm] (external link)DSC_1346-3 (external link) by Ben A (external link), on Flickr

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Ballen ­ Photo
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Oct 10, 2017 13:22 |  #4669

Nice composition.


The Captain and crew finally got their stuff together, now if we can only remember where we left it. :cool:

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SSNTUFF
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Oct 10, 2017 14:14 |  #4670

IMAGE: https://c2.staticflickr.com/8/7636/16907962685_f99966069f_b.jpg


One of my favs.

Land locked submariner, making do with what I have.

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SSNTUFF
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Post has been last edited 1 month ago by SSNTUFF. 2 edits done in total.
Oct 10, 2017 14:16 |  #4671

IMAGE: https://c2.staticflickr.com/8/7516/15770641697_3162db7764_c.jpg

I had to shrink this one a little.

Land locked submariner, making do with what I have.

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Ben ­ in ­ San ­ Diego
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Joined Jan 2014
Oct 10, 2017 20:07 |  #4672

Ballen Photo wrote in post #18469845 (external link)
Nice composition.

Thank you.


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Pagman
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Post has been edited 1 month ago by Pagman.
Oct 20, 2017 22:12 |  #4673

One of my best I think.

P.

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Nikon D7100, Nikkor 300 f4 IF ED :-)

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Zivnuska
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Oct 21, 2017 15:57 |  #4674

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navydoc
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Oct 22, 2017 09:42 |  #4675

I tried out the new Preserve Details 2 feature in PS CC 2018 and it seems to work pretty well. Here's a crop of a portion of the moon after I enlarged 200%

The original was shot at an effective field of view of 1200mm using my FE 100-400 lens + 2x extender on my Sony a6500.

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Take nothing but photos - leave nothing but footprints - break nothing but silence - kill nothing but time.

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Inspeqtor
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Elkhart, Indiana
Oct 22, 2017 09:46 |  #4676

navydoc wrote in post #18478237 (external link)
I tried out the new Preserve Details 2 feature in PS CC 2018 and it seems to work pretty well. Here's a crop of a portion of the moon after I enlarged 200%

The original was shot at an effective field of view of 1200mm using my FE 100-400 lens + 2x extender on my Sony a6500.
thumbnailHosted photo: posted by navydoc in
./showthread.php?p=184​78237&i=i33099070
forum: Astronomy & Celestial

Those craters you have are phenomenal!! Wonderful detail there!!

Also very cool you found Gene's Place, but where is the flag???  :p


Charles
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navydoc
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Oct 22, 2017 10:00 |  #4677

Inspeqtor wrote in post #18478242 (external link)
Those craters you have are phenomenal!! Wonderful detail there!!

Also very cool you found Gene's Place, but where is the flag???  :p

The sign is pointing towards Gene's Place. That's where the flag is. :lol:

I was pretty happy with how the enlargement worked out. You can see it a bit larger on my Flickr page as well as a short video shot in 4k then cropped to 1080p.

https://www.flickr.com ...7855833551/in/datep​osted/ (external link)

Here's the video on Youtube.


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Take nothing but photos - leave nothing but footprints - break nothing but silence - kill nothing but time.

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Two ­ Hot ­ Shoes
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Oct 22, 2017 12:20 as a reply to navydoc's post |  #4678

:eek:


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Inspeqtor
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Elkhart, Indiana
Oct 22, 2017 13:46 |  #4679

Inspeqtor wrote in post #18478242 (external link)
Those craters you have are phenomenal!! Wonderful detail there!!

Also very cool you found Gene's Place, but where is the flag???  :p


navydoc wrote in post #18478251 (external link)
The sign is pointing towards Gene's Place. That's where the flag is. :lol:

I was pretty happy with how the enlargement worked out. You can see it a bit larger on my Flickr page as well as a short video shot in 4k then cropped to 1080p.

https://www.flickr.com ...7855833551/in/datep​osted/ (external link)

I just showed your moon shot to my wife, she asked 2 very good questions I did not think of:

"Who is Gene", and..... "What is Gene's Place"?

The short video was nice :)


Charles
Canon EOS 60D Gripped * Canon EOS XSi * Flickr Account (external link)
Tokina AT-X Pro DX 11-20 f/2.8 * Sigma 17-70 f2.8-4 DC Macro OS * Sigma 150-500 f5-6.3 APO DG OS HSM
Canon 18-55 IS Kit Lens * Canon 70-300 IS USM * Canon 50mm f1.8 * Canon 580EX II *** iOptron 3302W Star Tracker

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navydoc
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Oct 22, 2017 14:23 |  #4680

Inspeqtor wrote in post #18478384 (external link)
I just showed your moon shot to my wife, she asked 2 very good questions I did not think of:

"Who is Gene", and..... "What is Gene's Place"?

The short video was nice :)

Well, I'm Gene and where I live is "My Place". :-)

Here's one more shot of the moon I took on the 30th and also enlarged 200%.

I hope it looks OK too.

http://www.ussoriskany​.us/moon/Times2.jpg (external link)


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Take nothing but photos - leave nothing but footprints - break nothing but silence - kill nothing but time.

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The Official Shoot the Moon Thread
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