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eyepieces for 16 inch f4.5 dob

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#1 youngbill

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Posted 27 October 2020 - 06:27 PM

JUST PURCHASED A 16 INCH DOB.  WHAT LOW MAG EYEPIECES SHOULD I GET.  I HAVE THE HIGH MAG WITH A 7, 9, AND 16 NAGLERS, BUT CANT JUSTIFY THE COST OF MORE TVS.  WHAT WOULD YOU GET?


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#2 Blueox4

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Posted 27 October 2020 - 06:29 PM

I’d look at the APM 30mm UFF. 


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#3 Dennis Tap

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Posted 27 October 2020 - 06:33 PM

Hey,

 

Uhm....a 24mm ES 68°? Or a TV 32mm plössl.

Or how about an APM Ultra flat field 30mm....but it's a 2''...but not a heavy handgrenade.

 

By the way: the APM is more expensive than the TV plössl.


Edited by Dennis Tap, 27 October 2020 - 06:37 PM.


#4 John Fitzgerald

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Posted 27 October 2020 - 06:40 PM

24mm ES 68 degree field.  You will probably find that the 16 Nagler will be your most commonly used eyepiece for DSOs.  Your 9mm will be good for smaller planetary nebulae. 



#5 TiSaph

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Posted 27 October 2020 - 06:55 PM

Biggest question is do you need glasses while observing?

#6 youngbill

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Posted 27 October 2020 - 07:01 PM

NO.  I VEIW WITHOUT GLASSES.  I WAS THINKING OF SOMETHING 20 TO 30 MM.



#7 JimV

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Posted 27 October 2020 - 07:12 PM

20mm 100 degrees ES or APM.

30mm 82 ES.

 

You will need coma correctors.  I use Baader MPCC.



#8 RLK1

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Posted 27 October 2020 - 07:46 PM

I like the ES 24mm 82 AFOV for lower power widefield views in my 16" F4.5 dob. It does quite well on the Veil with a good 0111 filter. I use a paracorr but it's still a decent wide field view without one. The Maxvision version is cheaper:
https://www.aliexpre...earchweb201603_



#9 youngbill

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Posted 27 October 2020 - 07:47 PM

HAS ANYONE TRIED THE 2 INCH SWANS OR THE Q 70 FROM ORION



#10 John Fitzgerald

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Posted 27 October 2020 - 07:50 PM

The Q70 has bad edges in fast focal ratio scopes, like f/5 and f/4.5.  Don't know about the SWANS, but it's probably much the same.


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#11 junomike

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Posted 29 October 2020 - 05:29 PM

All or most will benefit from a Coma Corrector. 

35mm Pan (Used)




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