6x30 or 9x50 finderscope for 90mm Mak?

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6x30 or 9x50 finderscope for 90mm Mak?

Postby zolantal » Thu Jun 28, 2018 11:18 pm

I'm looking to buy a 90mm SW mak as a lightweight travel scope (goal is to be able to take it on hikes in just a backpack). It only comes with a stock red-dot finder, so I'll pick up a finderscope for it (an amici prism one). Question is: should I go for a 6x30 or a 9x50? I'm leaning towards the 9x50 one, but I'm worried that might be overkill for a scope of this size (1.5kg, 10x24cm tube overall), and it would kill its portability.
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Re: 6x30 or 9x50 finderscope for 90mm Mak?

Postby The Man with the Corrugated Iron Roof » Sat Jul 28, 2018 10:35 pm

I've got the 9x50. It is not heavy and I've even seen M33 through it from a dark site. You can detach it from the 'scope for travel.

It was a great help when I was researching the Messier objects.
How can I be one with the universe when we don't know what 96% of it is.

My website: http://www.philippughastronomer.com/

My blog: http://sungazer127mak.blogspot.com/

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Re: 6x30 or 9x50 finderscope for 90mm Mak?

Postby Gfamily2 » Thu Aug 16, 2018 12:17 am

To be fair, the field of view of a Mak is quite small, so the OP is quite right to think about how to locate fainter targets.

When I was looking for a finder, I went for a 9x50 Right Angled one, the extra aperture helps under less than ideal skies - though the smaller field of view does make the initial pointing more important.

Have you considered keeping the red dot finder and getting a pair of 8x50 binoculars rather than a dedicated finder? With the binoculars you may well find it easier to locate the target than using the finder on the scope, and having done so, you'll know where in the sky to point the red dot, and your scope should be in the right area.
Scopes: Meade 8" SCT, Skywatcher 127mm Mak, Raffle winner of SW ST80
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Re: 6x30 or 9x50 finderscope for 90mm Mak?

Postby The Man with the Corrugated Iron Roof » Fri Aug 17, 2018 10:47 pm

Gfamily2 wrote:To be fair, the field of view of a Mak is quite small, so the OP is quite right to think about how to locate fainter targets.

When I was looking for a finder, I went for a 9x50 Right Angled one, the extra aperture helps under less than ideal skies - though the smaller field of view does make the initial pointing more important.

Have you considered keeping the red dot finder and getting a pair of 8x50 binoculars rather than a dedicated finder? With the binoculars you may well find it easier to locate the target than using the finder on the scope, and having done so, you'll know where in the sky to point the red dot, and your scope should be in the right area.


Can you mount your "bins" on your telescope? I found a red dot finder was good for bright objects but poor for faint DSOs.
How can I be one with the universe when we don't know what 96% of it is.

My website: http://www.philippughastronomer.com/

My blog: http://sungazer127mak.blogspot.com/

Photos: https://www.flickr.com/photos/philippughastronomer/
The Man with the Corrugated Iron Roof
 
Posts: 480
Joined: Sat Nov 23, 2013 1:53 pm
Location: Wiltshire but can be just about anywhere up to 41 000 feet


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