Question about Optics
When I pull the rear lens back it comes off. I think it's missing a screw. Can you please help? Thanks, Jim
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Posted on Jan 02, 2017
SOURCE: RA11 A Spotting scope
I did a little research for you. Check your manual but I think your "eye piece" has a 12.5mm thread into the body of the scope. The FSA-L1 has a 15.2mm thread which goes in the place of and replaces the eye piece for the models it fits. Check that manual too. If you have calipers you can verify it too by measuring the male thread of each. What you need if you can find it is a 12.5mm (male) to 15.2mm (female)adapter. Becareful it doesn't change the focal length. Check with photo shops or on-line. I'll do a quick search too and repost if I find one.
Posted on Jul 16, 2007
Hi, I would contact Swift directly on this number: For ordering parts or warranty repair information, please contact Swift Customer Service at 800-523-4544. You can get other contact information and dealer locations on their website: http://www.swift-optics.com/support/faq/dealer The 'scope is mounted on a standard camera tripod thread so you can always check your local camera dealer. Please update the question & let us know if the information given was useful to you - Good Luck!
Posted on Aug 13, 2007
The moon is big so use the 25mm. The Barlow will have a multiplication marking on it 2x 3x etc. A 2x Barlow lens will effectively double the power of the eyepiece you are using. Do not use the erecting eyepiece for anything other than land viewing. Erecting eyepieces generally reduce the amount of light reaching your eye and thus reduce brightness of the faint objects in the sky.
So basically just place the 25 mm lens in the focuser and point the scope at the moon and you will be amazed at what you can see and how bright it is.
Posted on Jan 02, 2008
SOURCE: tasco scope manual
The manual is here under "Generic Riflescopes". It is a .pdf file.
The Tasco site for Riflescopes
Posted on Jul 19, 2008
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