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Time for a new journey into NV w/MOD 3 C-mount wht/f-l

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#1 MrRoberts

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Posted 09 May 2019 - 08:37 AM

After a lot of reading, and before I buy or sell any scopes I have decided to try this new journey. Don't know if there is anything else I should know before I call UNV (and order 1.25 & 2.00 adaptors from scope stuff). Maybe order filters after I have settled in whit equipment. 


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#2 Xeroid

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Posted 09 May 2019 - 08:49 AM

Inquiring minds ask:: Which device are you thinking of obtaining & why that model?



#3 Vondragonnoggin

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Posted 09 May 2019 - 08:51 AM

Maybe decide on a focal reducer to use.

 

Some use .75x, some .7x, some .5x

 

I think a more common theme though is to get a 2” focal reducer in whatever reduction you pick  out of commonly sold 2” focal reducers.

 

I use a 2” Antares .5x reducer, but have both an AVS varioreducer (.63x, .56x, .5x, .43x, .36x, .29x) and GSO .5x reducer in 1.25” and found that both 1.25” reducers vignette pretty bad.

 

2” seems to be where I get the best clear aperture on my scopes. The ScopeStuff 2” nosepiece with both 2” and 1.25” (inset) filter threads covers using a reducer in 2” size on the nosepiece and still be able to chose using a 2” filter on the outside threads of the reducer or a 1.25” filter on the inset threads of the nosepiece.


Edited by Vondragonnoggin, 09 May 2019 - 08:58 AM.

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#4 Mazerski

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Posted 09 May 2019 - 09:08 AM

Yes, get both size adapters. 

 

Filters: my experience dictates that light pollution plays a role. At low focal ratio the 610nm IR allows too much light such that contrast is lost between the DSO and the sky.

 

The 642 and 685nm IR (I use both) but the 642 shows off the summer Milky Way clouds - highly recommended.

The 6, 7 and 12nm Ha CCD filters are widely used - I would say if your not sure, get the 7nm. 

 

Maybe other users will add thier preference.


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#5 Jeff Morgan

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Posted 09 May 2019 - 09:11 AM

Nosepieces and filters will get you off to a fast running start. Northwest Chicago suburbs, definitely 685 longpass for light pollution. Then a decent h-alpha. Get your feet wet a bit with two filters and your current scope and you'll have a better idea where next.

 

Since you use Tele Vue eyepieces, the TNVC afocal adapter may come in handy in Phase 2.

 

If you got the C-mount device (sounds like you did since you bought nosepieces) and want to do low power viewing, a $20 C to Telephoto adapter is nice. I'm really liking a 50mm f/1.4 Canon lens right now, but all of the common camera lens lengths have uses.


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#6 MrRoberts

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Posted 09 May 2019 - 03:00 PM

Just placed order with Todd at UNV for the MOD3 C mount, white p/f.l. and Scope Stuff.

It will be a couple of weeks before things start coming together.

I will keep you all updated as thing progress.



#7 Vondragonnoggin

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Posted 09 May 2019 - 03:52 PM

Just placed order with Todd at UNV for the MOD3 C mount, white p/f.l. and Scope Stuff.

It will be a couple of weeks before things start coming together.

I will keep you all updated as thing progress.

Did you get the variable gain option?



#8 Jeff Morgan

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Posted 09 May 2019 - 04:04 PM

Congratulations! Just in time for the summer Milky Way.

 

You're going to have so much fun!



#9 MrRoberts

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Posted 09 May 2019 - 04:37 PM

I believe this model has variable gain control.



#10 Vondragonnoggin

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Posted 09 May 2019 - 07:11 PM

I believe this model has variable gain control.

Excellent. Helps to dial in most pleasing views. Turning down gain a little with narrowband Ha can smooth the view out quite a bit by reducing scintillation.



#11 descott12

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Posted 11 May 2019 - 11:11 AM

What scope do you intend to use this on? I have an Evo 8 and I have recently become really interested in NV. I was thinking about pretty much the same setup at prime focus?



#12 The Ardent

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Posted 11 May 2019 - 12:26 PM

Dave

 

Did you try the PVS7 your club bought a couple of years ago? 

What scope do you intend to use this on? I have an Evo 8 and I have recently become really interested in NV. I was thinking about pretty much the same setup at prime focus?



#13 descott12

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Posted 11 May 2019 - 12:37 PM

Dave

 

Did you try the PVS7 your club bought a couple of years ago? 

No, I actually am not very active with the club anymore. I have a pretty nice setup at home and the club's dark site is really nice but almost 2 hours away.



#14 MrRoberts

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Posted 11 May 2019 - 02:08 PM

Post 11

I am going to use it first on my 15" DOB here (near Chicago). Will most likely take it with this fall to Tucson and try it on my C-8/E and GT102 that I keep there. I may be swapping scopes at that time also, moving the DOB to Tucson and brining the C-8/GT back here. Depends. We'll see.



#15 Starman81

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Posted 11 May 2019 - 02:33 PM

Post 11
I am going to use it first on my 15" DOB here (near Chicago). Will most likely take it with this fall to Tucson and try it on my C-8/E and GT102 that I keep there. I may be swapping scopes at that time also, moving the DOB to Tucson and brining the C-8/GT back here. Depends. We'll see.

REALLY glad you're going to try out NV in the big dob... I don't think you'll end up selling it after all.


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