Question about Pentax DCF SP Binocular

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Diopter adjustment I have a pair of Pentax DCF SP 10x43 that I dropped a short distance. I have to now crank the diopter adjustment all the way to the left to get the correct vision. Should I send them in for some kind of adjustment? Mike

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Call tech support! That's why these people get paid. Sites like this wouldn't need to exist if they did their jobs correctly!

Posted on Mar 11, 2008

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I have a pair of pentax 10x42 DCF HRc binoculars that will not focus properly througn the right eyepiece. Just wondering if this is a common problem and is it worhtwhile getting repaired


The binos will rack focus both at the same distance, you need to rack focus left side to distant image with left eye only, then turn diopter focus to focus right eyepiece. Diopter focus is thinner wheel behind focus wheel

Aug 15, 2015 | Pentax DCF HRc (10x42) Binocular

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Need to realign the optics for Binoculars


You can't. It needs to be done professionally.

I imagine that you are now finding that whatever you do, you cannot get both eyepieces to focus. Most likely, the carrier yoke for the eyepieces has bent or broken: it's by far the biggest single cause of binocular failure.

If it's bent then straightening it is rarely accurate and usually results in the yoke breaking or leaves it severely weakened and ready to break. If it's broken, the physical loads across such a tiny contact area making gluing impractical. Even in the rare cases where it can be done all that it results in is a yoke which is back in one piece but which is now bent.

In most cases, the cost of repair exceeds the cost of replacing with new, but your binoculars are fairly expensive so that's most unlikely to be the case. But if you want them to work again like a £500+ pair of binoculars then you need to send them for professional repair. If you do it any other way then you may as well throw them away and buy a £15 pair of Bresser Meade 10x50's from LIDL (excellent binos for the price and comparable to many £100 models, but not in the same league as yours when fully functional).


Mar 07, 2010 | Olympus Binoculars & Monoculars

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Diopter out of ajustment


pentax is one of the good guys and has a great serice center. why no send it back and ask for a replacement, if your sure you are focusing properly there should be no problem. larry@reichinstruments.com

Jun 04, 2009 | Pentax DCF SP Binocular

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Bushnell PowerView 13-1633 Binoculars


Hi - This called the diopter adjustment which compensates for small differences in focus between the left & right eyes.

See the following web page for adjusting :

http://www.birdwatching.com/optics/diopter_set.html

Please take a moment to rate this solution & let us know if the information given was useful to you - Good Luck!

Informatica

Sep 07, 2008 | Bushnell PowerView 13-1633 Binocular

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