Product Description
The F050IW2 is Stellarvue’s newest version of our top-rated 50mm optical finderscope in instrument white. It matches the powder-coated finish on our current premier telescopes with aluminum tubes, and now comes with a carbon-fiber-sided correct image erecting prism and Stellarvue logo.
This finderscope is the lightest 50mm on the market. It weighs only 19 ounces and works with our standard 50mm ring systems. You may use other 1.25" eyepieces with this finderscope, converting it to a small telescope. It performs very nicely with Naglers! The 50mm objective gathers 50 times more light than the naked eye, so you can more easily spot dim objects in the night sky.
Finderscope dimensions: 9" long, 2 1/4" wide and 6" high. The main tube is about 2.16" in diameter and the dew shield is about 2.3" in diameter.
This finderscope comes in an Instrument White textured paint matching our aluminum telescope tubes perfectly and has a Stellarvue logo on the dew shield. Separate helical focusers allow you to focus the crosshair reticle first, then the optical focus. The angle of the prism and eyepiece may be rotated to place the eyepiece in the most comfortable position, but it may be necessary to readjust the finder scope once the eyepiece is rotated. We supply these finder scopes without rings so you can select the ring system that works with your particular telescope. Visit our 50-60mm finder scope ring set page to determine and order the rings you will need.
Important! When installing mounting rings DO NOT unthread the dew shield. The objective may fall out. Always unthread the rear assembly (Adapter, prism, focuser, eyepiece) from the main tube to install the rings.
*Rear thread size for all F050 models is M52 x 1mm
*Eyepiece Focal Length = 23mm
*Eyepiece FOV = 50 degrees
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Product Reviews
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Finder scope
Haven't used it used it much yet but seems to be pretty good. I'm happy with it.
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50mm RACI white finder scope
I have heard how good this finder scope is and that reputation was confirmed when I began using it. I look forward to many years of using this little scope with my reflectors and refractors. This is a very good finder scope that rivals the best.
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Awesome Finder
Beautiful, easy to calibrate. Has a correct image, I mounted it on my GSO 6" F/4 imaging scope. The high mount rings are a perfect fit! The only thing I might say is for the price and the fact you still have to buy the rings separately, would have been nice if the rectile had been included. But oh well.
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2nd Best Finder Ever Owned in 20+ Years!
2nd best? The the only reason its not #1 is that is the BEST FOR ITS PRICE RANGE It's right angle and correct image with its included prism. The eyepiece is where the focus is, not on the scope. The only finder I found better cost an additional $150-200 MORE than this finder. What makes the other so much better is dual cross hairs in the eyepiece is oriented at 45° making it a little easier to see where the finder is pointing. Dual cross hairs means the object you center won't be hidden behind a pair of cross hairs but rather in a box. The StellarVue cemented optics are clear and won't change position. The powder coating on the body is 2nd to none. It is truly top notch as is the eyepiece. The eyepiece of course has threads for an illuminator. It's StellarVue, of course it does.
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Great finder
I waffled over this purchase given how much more expensive it is compared to some other options. But when I tested it next to the stock 8x50 finder that came on my sky watcher 12.5 inch Dobsonian, There was no comparison. This finder very sharp and feels much better made. Now I plan to replace the finder on my AT102 ED with another Stellarvue!
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9X50 Finder Scope - White
Excellent image quality and construction, highly recommended. Overall, the best right angle, image correct 9X50 finder scope on the market.
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Excellent finder scope
I ordered also the EI002 Illuminator and 50 - 60 mm Finder Scope Rings. Scope arrived on time and was really well packaged. Over-all build quality is impressive and the optics are excellent. Much brighter and sharper than the original straight through finder that came with my 8in dobsonian. Having a right angle finder makes using a dob so much nicer and having the image upright makes finding your way easier. Eyepiece is very good and with comfortable eye relief. Having it removable is nice and makes the scope more versatile. Focusers, seperate for eyepiece and crosshairs, move smoothly. Over-all I'm very impressed with this scope and would highly recommend it as an upgrade over the mediocre stock finder scopes that come with most telescopes.
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Great Finder
I've used straight through SV finders in the past and have not been disappointed. I was very happy with this one as well. Worked as expected.
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9X50 Right Angle Finder
I just received the three I ordered with the cross-hair illuminator, and I’m super impressed. Very high quality finder with a removable eyepiece. It also has a seperate focuser on the eypiece for the cross-hairs, along with a seperate focuser for the optics. I can’t wait to use it and save my neck.
