Old 28-12-2019, 01:31 PM
DarkKnight (Kev)
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Join Date: Jun 2015
Location: Morpeth NSW
Posts: 177
What bits do I need ?

After about four years and on my fourth mount, I still haven't seen first light with any set-up, other than some backyard testing.

I went through the HEQ5/6 trip and just as I was ready to christen it all both my neighbours built monster sheds meaning I had to leave home to take images.

To that end I decided the highly portable Star Adventurer was the way to go and set about putting a kit together. I was seriously getting close to actually taking a photo when some health issues have basically put me out of action for the past two years. This geriatrica really is a whole lot of fun, NOT. Anyway, I'm back to the stage of feeling up to chucking my kit in the ute and heading out.

I have a Nikon D600 currently in the US at Life Pixel getting the HA mod done, and my lens include a 12mm f2.8 Samyang, 14mm f2.8 Samyang, Sigma 70-200 f2.8 Sport and the Sigma 150-600 Sport.

I was looking for a lightweight prime when I came across the Red Cat 51 and a heap of happy users and great reviews.

My question? Other that a 'T' mount, is there anything else I need to use this lens with my Nikon D600.



Ref: https://williamoptics.com/redcat-51
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Old 04-01-2020, 01:27 PM
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jrm_astro (John)
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Join Date: Oct 2019
Location: Sunshine Coast
Posts: 7
Hey Kev,

I'm not 100% sure, but I would think that a T-ring would be all that is required to connect the two. The only issue I had when connecting my DSLR to my ED80 was focusing. I installed a spacer and all is well. Could also use a field flattener from what I understand.

Astrobackyard (Trevor) on YouTube uses the Redcat with a DSLR in some of his videos. May be worth a look.


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Old 04-01-2020, 02:14 PM
DarkKnight (Kev)
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Join Date: Jun 2015
Location: Morpeth NSW
Posts: 177
Thanks John
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Old 04-01-2020, 05:25 PM
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casstony is offline
Join Date: Feb 2006
Location: Warragul, Vic
Posts: 4,485
An M48 Nikon T-ring screws onto the M48 thread at the rear of the Redcat. A 2" filter can also be mounted inside the Redcat adapter.
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