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Da Moon!

moon telescope astro photo

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#1 PeterPP

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Posted 18 June 2016 - 12:11 AM

All this talk lately of telescopes I thought I dust off my old newt

Here's a couple of shots from tonight, both are the full uncropped image from the 7d-mkii.

 

 Image 1: 7d-mkii at prime focus of a 200mm f/5 (1000mm f/l) Newtonian (about 20x compared to a 50mm lens),  rough polar align and motorized GEM mount 

ISO100 1/500 

Telescope effectively becomes a 1000mm f/5 lens

 

 

 Image 2: 7d-mkii with eyepiece projection using a 10mm Super Plössl eyepiece on a 200mm f/5 (1000mm f/l) Newtonian (about 100x compared to a 50mm lens),  rough polar align and motorized GEM mount, note the image is slightly blurred, the EQ5 GEM mount could not hold the OTA steady enough.

ISO 1600 1/320 (eyepiece projection gobbles up light)

With the 10mm eyepiece projection the telescope effectively becomes a rather very dim and very shaky 5000mm lens

 

I'll attach a pic of the setup tomorrow when there is some light to take its pic.  :P

The combo of gem mount, counter weights and OTA weigh in around the 100 pound mark, not easy to cart around.

Attached Files


 Peter

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#2 Roderick

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Posted 18 June 2016 - 07:11 AM

Massive John !  I mean Peter.

Great explanation as to why its so difficult to get sharp high magnification shots of the mooo-in (as we pronounce it ;))



#3 PeterPP

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Posted 18 June 2016 - 08:02 AM

Yes at high magnification the focal length gets really long, and the effective f/stop gets very small, annoying combination when you want to freeze things.

 

Actually maybe trying to use the Sony nex instead of a heavy DSLR might improve the mounts ability to hold things still a bit.

But I don't have a Sony E-mount to T-mount adapter (yet).


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#4 John W

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Posted 18 June 2016 - 09:32 AM

Cool shots. Very interesting, thanks for sharing.



#5 Roderick

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Posted 18 June 2016 - 10:15 AM

Sorry Peter, I misnamed you! :unsure:



#6 geedee

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Posted 18 June 2016 - 01:59 PM

Good try on a difficult subject Peter. Sure beats any pic I have tried of the Moon..



#7 mjrmillard69

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Posted 18 June 2016 - 06:34 PM

Yep...makes me want a telescope even more lol.

 

Michael



#8 David Pavlich

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Posted 18 June 2016 - 09:30 PM

That's some nice work!!

 

David


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#9 PeterPP

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Posted 18 June 2016 - 11:36 PM

Oup's,  :P

 But I don't have a Sony E-mount to T-mount adapter (Ordered one has not arrived yet).

 

Wife had me moving furniture all day, and when she asked me to order a set of Harry Potter books from Amazon

as a gift I could not resist adding a little something to the order.   :)

 

Failed miserably at today's attempt to get the full moon against a blue sky background.

Sky went and filled with clouds for the evening.


:) NP, different,  I often get called Paul by mistake, at least so far no one has tried Mary.  :lol:

 

Sorry Peter, I misnamed you! :unsure:


 Peter

Locked out of forums and can't get back in.Siobhan sent me email that they are no longer doing anything with the forums site and to use the FB group instead.

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#10 Roderick

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Posted 19 June 2016 - 08:32 AM

Swish ! :D

Top musical reference there B)






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