Join for FREE
It only takes a minute!
Magnifying the passion for nature. Zeiss Victory Harpia 95. New!

Welcome to BirdForum.
BirdForum is the net's largest birding community, dedicated to wild birds and birding, and is absolutely FREE! You are most welcome to register for an account, which allows you to take part in lively discussions in the forum, post your pictures in the gallery and more.

Reply
 
Thread Tools Rate Thread
Old Saturday 8th April 2017, 13:21   #1
Fnagwaa
Registered User

 
Join Date: Apr 2017
Location: Essex
Posts: 5
Opticron 8x32 SR.GA issue

I have recently purchased a 2nd hand 8x32 SR.GA and the image quality and 3d effect is really nice. However I find it difficult to get a sharp focus because if I turn the wheel a fraction too far I have to go back further than expected. I think that this is due to some free play on the focus wheel before the eyepiece assembly starts moving.

Has anyone got this glass and if so does it have the same issue? Does anyone know if I can tighten the focus wheel to lose the free play? If not I may send to Opticron or even buy a new pair to see if that solves the problem, although if someone confirms it's a known issue then there won't be much I can do.

Any advice would be much appreciated as when they are on focus they produce a very sweet image. Thanks
Fnagwaa is offline  
Reply With Quote
Old Sunday 9th April 2017, 09:26   #2
typo
Registered User

 
Join Date: Feb 2010
Location: Hertfordshire
Posts: 3,335
I suspect it's a relatively straight forward job on the SRGA with the right tools and I'm sure there are a couple of member who could tell you exactly. Failing that, I'd give Opticron's service team a call. I don't know it their warranty covers second hand purchases, but I'm sure they can advise you of the best way to get the problem sorted.

David
typo is online now  
Reply With Quote
Old Sunday 9th April 2017, 17:34   #3
Cluster
Registered User

 
Join Date: Jan 2012
Location: Northern England
Posts: 430
Mine can do this, although not enough to bother me. Looking at it carefully, as the knob rotates, it moves up and down the shaft it sits on a little before it hits the end stop and pushes it as it should. It looks as if a shim in the right place would fix it.

Last edited by Cluster : Sunday 9th April 2017 at 19:46.
Cluster is offline  
Reply With Quote
Old Sunday 9th April 2017, 20:17   #4
Stephen Prower
Registered User

 
Join Date: Jan 2013
Location: Stevenage
Posts: 170
Fnagwaa

I have had my 8x32 SR.GA since new. It had a reasonable amount of use in its first year or two.

In answer to your questions, in the case of my 8x32 SR.GA:

1) The focussing mechanism had no free play new, and has no free play now.

2) As the focussing wheel turns, the binocular snaps into and out of focus most satisfactorily.

I read around about the time that I bought the 8x32 SR.GA that because the focussing is very fast, it is easy to overshoot. That is my experience too. It is easy to overshoot both ways -- and so find oneself 'rowing' back-and-forth in order to achieve focus. But you do not complain of that.


Stephen

Last edited by Stephen Prower : Sunday 9th April 2017 at 20:28.
Stephen Prower is offline  
Reply With Quote
Old Friday 28th April 2017, 13:58   #5
dandare
Registered User

 
Join Date: Jul 2005
Location: Wales
Posts: 224
Bought my 8x32 SRGA as new. My findings are pretty much identical to Stephen's.
dandare is offline  
Reply With Quote
Old Wednesday 8th November 2017, 23:19   #6
Stephen Prower
Registered User

 
Join Date: Jan 2013
Location: Stevenage
Posts: 170
Afterthought

Fnagwaa

In case the issue that you raised in your post dated 8 April is still a live issue, I tried out the Opticron 8x32 SR.GA the other day in comparison with the Opticron 8x42 HR.WP. Some people can't get on with the fast focus of the SR.GA, and others with the slow focus of the HR.WP. Some maybe can't get on with either!

It occurred to me that a behavioural rather than physical reason why some people can't get on with the fast focus of the Opticron 8x32 SR.GA could be that the Opticron focuses faster than their speed of accommodation* can keep up with.

It's a little like people not having the speed of reaction to cope with the fast response to the controls of a racing motorcycle. I recall the saga of the 1997 Suzuki TL1000S. One theory why riders crashed it was that it was a road bike with the throttle response of a race machine.

Binoculars do though, by contrast with the throttle response of motorcycles, allow you time to adapt.


Stephen


* I would be happy to accept correction if someone says that 'appreciation', rather than 'accommodation', is the correct term to use

Last edited by Stephen Prower : Wednesday 8th November 2017 at 23:51.
Stephen Prower is offline  
Reply With Quote
Old Thursday 9th November 2017, 16:02   #7
chartwell99
Registered User

 
Join Date: Dec 2003
Location: houston, texas, usa
Posts: 614
Quote:
Originally Posted by Stephen Prower View Post
Fnagwaa

I have had my 8x32 SR.GA since new. It had a reasonable amount of use in its first year or two.

In answer to your questions, in the case of my 8x32 SR.GA:

1) The focussing mechanism had no free play new, and has no free play now.

2) As the focussing wheel turns, the binocular snaps into and out of focus most satisfactorily.

I read around about the time that I bought the 8x32 SR.GA that because the focussing is very fast, it is easy to overshoot. That is my experience too. It is easy to overshoot both ways -- and so find oneself 'rowing' back-and-forth in order to achieve focus. But you do not complain of that.


Stephen
My 8 x 32 SR GA functions identically to what Stephen ascribes to his binocular. For me, the focus on the 8 x 32 SR GA is one of its notable strengths (and it has many) - no slack, no free play and wonderfully direct.
chartwell99 is offline  
Reply With Quote
Advertisement
Reply


Thread Tools
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Opticron discovery wp pc 8x32 vs Viking navilux 8x32 Jamie D Binoculars 6 Saturday 23rd September 2017 17:33
Meopta Meostar 8x32 focus wheel issue devans1 Meopta 9 Wednesday 24th February 2016 15:58
Midsize Binocular Shootout: Opticron Oregon 8x32 vs Sightron Blue Sky 8x32 vs MavenB3 ads Binoculars 25 Monday 18th May 2015 13:44
Opticron Discovery 8x32 v Opticron Savanna 8x30 Petrus82 Opticron 6 Sunday 3rd August 2014 12:02
Clones—Pentax 8x32 ED DCF and Opticron Imagic 8x32 BGA SE? MacGee Binoculars 8 Thursday 28th August 2008 00:50

{googleads}

Fatbirder's Top 1000 Birding Websites

Help support BirdForum

Page generated in 0.14445996 seconds with 18 queries
All times are GMT. The time now is 20:42.