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Old Monday 26th March 2012, 12:36   #1
Chhayanat
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Pentax 8x42 WP focussing problem

Using Pentax 8x42 WP (first model) since 2000. I now notice that I can get an acceptable focus while turning the focus wheel from distant to close positions but not the other way round. If I overshoot the focus point and return to the focus point from the opposite direction (i.e. the focus wheel travels from the near towards the distant position) I can get an acceptable focus.
Adjusting the right dioptre setting or IPD does not help. I started noticing this after returning from a long journey by air, where the glasses were in their soft case in a hard Samsonite suitcase cushioned among clothes. The suitcase was in the baggage hold.

This particular difficulty is not there with a Nikon 10x42 Premier though I have the usual accommodation problems associated with presbyopia and fast focussing wheel in this glass. The Pentax focussing wheel is much slower and deliberate.

Does the Pentax need collimation or any other adjustment?

Chhayanat


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Old Saturday 31st March 2012, 00:55   #2
ronh
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Chhayanat,
A collimation problem would not present itself only in one direction. It would serve no purpose, other than curiosity, to go back and forth with questions and answers trying to narrow the problem down. Something has worked loose inside, and it's going to require service from Pentax. They have a good warranty. Good luck with that.
Ron
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Old Saturday 31st March 2012, 13:09   #3
Chhayanat
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Quote:
Originally Posted by ronh View Post
Chhayanat,
A collimation problem would not present itself only in one direction. It would serve no purpose, other than curiosity, to go back and forth with questions and answers trying to narrow the problem down. Something has worked loose inside, and it's going to require service from Pentax. They have a good warranty. Good luck with that.
Ron
Thanks. This reply is very useful for the initial note to Pentax.
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Old Saturday 31st March 2012, 18:23   #4
stephen b
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I had a somewhat, but not quite the same problem with a pair of 8x32 DCF ED's that I bought used from a shop here in town 2 years ago. I knew about the problem before I bought them and contacted Pentax about their repair policy before my purchase of them.

On the ones I bought the focus would end up being just short of complete focus when turning in the direction of distance focus. I knew that is was probably just an adjustment fix. So I took a chance and bought them- my first Pentax purchase, other than a camera.

Pentax policy ( here in the states) is to just send in the binoculars with a $19.95 ( or close to that figure I think) check and they will analyze them and repair under warranty. Said would be set up in their queue and would be about 4-6 weeks repair time.

3 weeks later I got back the binoculars all fixed and cleaned up, and working perfectly.
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Old Sunday 1st April 2012, 00:51   #5
Chhayanat
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[quote=stephen b;2402967]
Pentax policy ( here in the states) is to just send in the binoculars with a $19.95 ( or close to that figure I think) check and they will analyze them and repair under warranty. Said would be set up in their queue and would be about 4-6 weeks repair time.....
[/QUOTE

I bought the Pentax 8x42WP from Adorama about 2001 during a visit to New York. I no longer have the original proof of purchase, though I faintly recall posting a warranty card to Pentax from Canada where I was living then. I suppose this means the "worry-free warranty" from Pentax no longer applies.

For me time is not an issue as I have waited up to six months for Nikon glasses to return after no-fault warranty repairs in the US. Most of the time it was finding someone to bring the glasses back which took time though on one occasion the manufacturer made a mistake.
Chhayant
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Old Saturday 2nd June 2012, 12:20   #6
Chhayanat
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[quote=Chhayanat;2403172]
Quote:
Originally Posted by stephen b View Post
Pentax policy ( here in the states) is to just send in the binoculars with a $19.95 ( or close to that figure I think) check and they will analyze them and repair under warranty. Said would be set up in their queue and would be about 4-6 weeks repair time.....
[/QUOTE
I bought the Pentax 8x42WP from Adorama about 2001 during a visit to New York. I no longer have the original proof of purchase, though I faintly recall posting a warranty card to Pentax from Canada where I was living then. I suppose this means the "worry-free warranty" from Pentax no longer applies.
Chhayant
I have just heard from Pentax USA who state that the binocular will be covered under their 'worry-free' warranty if I send it in with either the proof of purchase -which I do not have - or with a note stating that I am the original owner: which I am. This post is for those in a similar position to mine.
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