Author Topic: How do I find things in viewfinder?  (Read 398 times)

wallnewsspheryz

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Re: How do I find things in viewfinder?
« Reply #15 on: January 23, 2018, 01:59:05 PM »
If you don't want to drill any holes in your Zhumell Dobsonian's tube, or use double-sided tape or Velcro, another possible option is to use the OrionDual Finder Scope Mounting Bracket:https://www.telescop...ASABEgK9HPD_BwE  . I'm not sure how much room you have between your eyepiece focusing tube and the right-angle finder right now: http://www.allans-st...14/02/dob02.jpg

teirazaro

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Re: How do I find things in viewfinder?
« Reply #16 on: January 30, 2018, 06:47:17 AM »
I recommend more practice -- with binoculars. I assume that your finder is aligned such that it sees what your scope sees. If what you see in the finder is not what you want, try to match the view with your binoculars and navigate (star hop) from there.

David

Carlos Watson

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Re: How do I find things in viewfinder?
« Reply #17 on: January 31, 2018, 01:59:20 AM »
Quote
If you don't want to drill any holes in your Zhumell Dobsonian's tube, or use double-sided tape or Velcro, another possible option is to use the OrionDual Finder Scope Mounting Bracket:https://www.telescop...ASABEgK9HPD_BwE  . I'm not sure how much room you have between your eyepiece focusing tube and the right-angle finder right now: http://www.allans-st...14/02/dob02.jpg

The Orion Dual Finder Scope Mounting Bracket has worked well for me in one of my scopes, a 10" f/4.7 Sky-Watcher Collapsible Dob.

Dave Mitsky

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Guy Cleveland

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Re: How do I find things in viewfinder?
« Reply #18 on: January 31, 2018, 02:20:49 AM »
I added a cheap RDF to mine, made finding objects so much quicker. I used a little hot glue, because I didn't have any double sided tape, and it's been holding on quite well.

Marcus Kucrud

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Re: How do I find things in viewfinder?
« Reply #19 on: January 31, 2018, 04:32:07 AM »
I think Tony nailed it, RACI finders are great, if used with a red dot or reticule finder for initially pointing the scope.

In my experience, the Telrad is the most effective of the reflex finders, most owners of larger dobs who starhop use a Telrad and often thats all that's needed. The 0.5 degree, 2 degree and 4 degree diameter circles make it possible to often center an object without using the magnifying finder.

The downside of the Telrad is that it takes up a fair amount of real estate so fitting it to a comfortable location can be a challenge with an 8 inch..

They're $40.. A steal for the best finder out there.

Jon

headsbigwardsubs

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Re: How do I find things in viewfinder?
« Reply #20 on: February 02, 2018, 01:37:50 PM »
I just ordered a Celestron RDF from Amazon, so hopefully that will help.

I bought the SkySafari Plus app, hoping it would help, but it has some issues: I don't have a convenient way to mount my phone in the plane of the mirror. I was thinking that the telescope align thing could let me mount the phone perpendicular to the mirror, and then I could align on some known stars, but I guess that's not how it's done. Also, the accuracy of the compass is pretty lousy, so it's pretty far off.

loasandkosem

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Re: How do I find things in viewfinder?
« Reply #21 on: February 03, 2018, 12:33:54 AM »
<p class="citation">QuoteIn my experience, the Telrad is the most effective of the reflex finders, most owners of larger dobs who starhop use a Telrad and often thats all that's needed. The 0.5 degree, 2 degree and 4 degree diameter circles make it possible to often center an object without using the magnifying finder.[/quote]

The only pointing device on my 12.5" Dob is a Telrad.

Dave Mitsky

Eric Hayes

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Re: How do I find things in viewfinder?
« Reply #22 on: February 03, 2018, 03:41:15 AM »
+1 for Jim Davis's both eyes open. I sight the star with one eye and bring the finder scope over to the star....works great.George

David Washington

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Re: How do I find things in viewfinder?
« Reply #23 on: February 08, 2018, 06:18:16 PM »
Just to be clear, that technique only works with a straight-through finder scope.

Dave Mitsky

propdiagairil

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Re: How do I find things in viewfinder?
« Reply #24 on: February 08, 2018, 11:18:00 PM »
Quote
Just to be clear, that technique only works with a straight-through finder scope.

Dave Mitsky


Not if you have eyes like Marty Feldman's!

Lamar Davies

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Re: How do I find things in viewfinder?
« Reply #25 on: February 09, 2018, 09:09:42 AM »
Quote
The Orion Dual Finder Scope Mounting Bracket has worked well for me in one of my scopes, a 10" f/4.7 Sky-Watcher Collapsible Dob.

Dave Mitsky
That's what I use. A laser is mounted opposite the finder scope.
Try a laser.