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Should I get a spotting scope when I already have a 10X70 Fujinon (3 Viewers)

baofeng

Well-known member
Hi I am new to birding. Heard good things about Swarovski scope which has a diameter of 65mm and 85mm. If I only need it for 10-15X magnification as I am viewing birdings that are quite near to me, should I get a Swarovski scope and a eyepiece that give me 10-15X magnification (If there is any). Will there be a improvement over my current bino setup as I was thinking the diameter represent the light-gathering ability and my Fujinon 70mm should be able to match with the 65mm Swarovski and the 85mm Swarovski should have marginally better performance than my Fujinon. Thanks in advance.
 
If you don't need the extra magnification, stick with the binoculars. Two-eyed viewing is always pleasanter than squinting through a spotting scope
 
Well, depends on the distance involved. Shorebirds & waterfowl are generally out beyond 100m and move a lot, requiring a lot of change in focus. Your Fuji is IF and unless on a sturdy mount, is going to be a handful. Also 15x, even thru a good scope, is likely not going to be enuf for the tougher ID's. 25-30x is about right for most of that. If, on the other hand, woods birding is on the menu, the big 10x is gonna be a handful, good as the optics are. For that, you might wanna consider a good 7-8x widefield bino. If you shop around a little, either the scope/eyepiece or the bino, can be picked up for very reasonable $.
 
so if I need only 10X, should I stick to the Bino or will buying Swarovski scope be better (I was thinking the IQ may be better because it is refractors). I be sometimes owling so I think a exit pupil of 7 is good.

Also, a 10X100 is useless as a 10X70 is adequate (as human pupil is 7mm at most). Does this apply to digiscoping too? Will digiscoping with a 10X100 scope be better than 10X70?
 
You would need ~100mm refractor to give you the same brightness you are getting from a Fuji 10x70. If you don't need the magnification, don't do it.

cheers,
Rick
 
Baofeng,
I was a stargazer long before I became a bird watcher. My first great binocular was the Fujinon 7x50, the 10x70's "little brother". When I started birding, I was happy to use my Fujinon, as you are now, because of its superb optics. But, upon discovering this forum, (I didn't know any birders personally at the time) I learned that the small 42mm or even 32mm binocular was the typical instrument, usually made with roof prisms. I slowly came to realize that my relatively large, heavy, and slow focusing Fujinon, despite it's satisfying view, was probably not the best for carrying around on a miles-long birding adventure, where one is likely to be surprised by close and fast-moving birds. In that sense your 10x70 is even more inappropriate than my 7x50.

I am now a convert to the typical birding binocular, and highly recommend something like an 8x42 or 10x42. I must warn you however that it is very expensive to buy a roof prism birding binocular that is optically as good as your Fujinon. It is fortunate that you are prepared to buy a Swarovski spotting scope, because it will cost almost that much. I cannot recommend less, or you will be disappointed in the view. I can tell you that you are spoiled rotten and may not realize it. But you would be beside yourself with joy, and would see more birds, with a lightweight binocular which is quick and easy to use. I also watch owls with my 8x42. Ease of use can be as important to what is seen as raw optical power and light gathering ability.
Ron
 
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For the use you are describing a scope does not sound like a good solution. For me it is harder to find the bird with a scope (but it gets easier the more you use it).

I agree the Swarovski 80 is a fantastic scope.

I use 10x bins which are more than adequate for viewing the back yard feeder (70 feet away). But I often point the scope at our backyard feeder for a full frame view of a bird on the feeder. The additional details the scope provides are very enjoyable.

For long distance viewing (such as a hawk migration, ducks and shore birds) the scope is indispensable and worth its weight and cost (in my opinion).
 
If you REALLY only want 10-15x, stick with the binoculars;
but there are times when the 30-40-60X comes in handy that the binos cannot match.

I was watching a red tailed hawk on a power pole with 10 to 15x with binoculars-nice hawk. When I used 45x with a spotting scope, I could see that this was an old hawk, had a healing injury to back of head, may have had a leg injury.

For me, the spotting scope will never replace binoculars, but can compliment the binos.

edj
 
You would need ~100mm refractor to give you the same brightness you are getting from a Fuji 10x70. If you don't need the magnification, don't do it.

cheers,
Rick

You only need an 83mm refractor to give you the same brightness as seen with binocular vision thru your 10x70s.

sq rt of 70x70x1.4 = 83

edz
 
Yeah, but is there an 83mm refractor? Given a 100ED or 102 achro can be had less now than the other available 81mm 85mm and 90mm and 92mm sizes, I would say the 100mm class should be the next logical aperture upgrade.

Rick
 
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