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Erinsimaging
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Reged: 05/25/12
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What size threads for front of 3.5" Questar?
#5241383 - 05/26/12 09:50 PM
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Anyone know what the specificans/size/threads are for the front of the 3.5" Questar? I was thinking about purchasing the correct size UV photo filter to screw into the front and using it as a bit of added protection when I take my Field model out birding.
Erin
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Suk Lee
Post Laureate
Reged: 10/07/03
Loc: Pleasanton, CA
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Re: What size threads for front of 3.5" Questar?
[Re: Erinsimaging]
#5241454 - 05/26/12 10:39 PM
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Don't know the thread count, but highly doubt you can find a UV filter of the right gigantic size. Questar offers a protective flat with the requisite flatness but it isn't cheap. Ironically flat is harder to make than curved...
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Terry_McComas
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Reged: 04/03/11
Loc: SW Canada
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Re: What size threads for front of 3.5" Questar?
[Re: Suk Lee]
#5346017 - 07/31/12 09:18 PM
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I don't have a clue as to the thread specifications, either, but wanted a UV filter for my 50th Anniversary model, as I do a lot of public outreach and am nervous about little fingers, covered in peanut-butter. The 95 mm. filter, from B + W, fits perfectly, is superb quality has a bomb-proof coating and costs considerably less than Mother's flat. (I ordered mine from B + H, in New York.)
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