Gehmann #579 CLS Vari-Focal Astigmatic Iris system

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lee_enfield223
Posts: 66
Joined: Fri Apr 29, 2016 6:38 pm
Location: SYDNEY Australia

Re: Gehmann #579 CLS Vari-Focal Astigmatic Iris system

#16 Postby lee_enfield223 » Tue Oct 18, 2016 8:12 pm

finally getting the diopter 50300-0 Diopter 0.0x from Gehmann this week ill have a look through it and let you guys know....

RDavies
Posts: 1764
Joined: Sun Feb 12, 2006 7:23 pm
Location: Singleton NSW

Re: Gehmann #579 CLS Vari-Focal Astigmatic Iris system

#17 Postby RDavies » Wed Nov 09, 2016 9:02 pm

lee_enfield223 wrote:finally getting the diopter 50300-0 Diopter 0.0x from Gehmann this week ill have a look through it and let you guys know....

Just curious, how much do they cost?

Gerard
Posts: 142
Joined: Fri Feb 26, 2016 1:36 pm
Location: Rifle Range QLD

Re: Gehmann #579 CLS Vari-Focal Astigmatic Iris system

#18 Postby Gerard » Thu Nov 10, 2016 9:12 pm

Also following this post and interested in cost and to hear how well its working so far :)

Aubrey
Posts: 226
Joined: Mon May 26, 2008 10:43 pm
Location: Sydney

Re: Gehmann #579 CLS Vari-Focal Astigmatic Iris system

#19 Postby Aubrey » Sun Jan 08, 2017 4:06 pm

Gerard wrote:Also following this post and interested in cost and to hear how well its working so far :)


Mine is on the way - $430 posted.
Aubrey Sonnenberg

lonerider43
Posts: 72
Joined: Thu Sep 01, 2016 6:55 pm

Re: Gehmann #579 CLS Vari-Focal Astigmatic Iris system

#20 Postby lonerider43 » Sun Jan 08, 2017 8:02 pm

any more to tell about this ?

RMc
Posts: 95
Joined: Wed Jun 10, 2009 8:16 pm

Re: Gehmann #579 CLS Vari-Focal Astigmatic Iris system

#21 Postby RMc » Sat Feb 11, 2017 7:18 pm

Finally took my new diopter 50300-0 Diopter 0.0x to the range today, my rifle has a 30mm front tunnel and a .5 eagle eye, dialling the diopter in it is possible to see every blemish on the front ring, however at this setting the target is not distinguishable, dialling further you can make the target the focus, the trick seems to be to find a happy medium where the ring is dominate.
The real eye opener was that I had to increase the ring size a full mm, maybe more but I did not have any larger sizes with me. This puts me up to the sizes that I was always told that I should be shooting at but could never control.
Eighteen months ago I put the TR stock away and have been shooting FC because my scores headed south due to not being able to acquire a sight picture, shooting three ranges today I feel that things have changed.
My scores were not over the top, but 95% where lost in vertical(low) from me not holding the rifle correctly, but the groups tightened as the day went on and it is my feeling that time behind the rifle will allow the old muscles to become more relaxed.
You should not think of this lense in the same sence as the magnifing diopter but as an adjustable corrective lense(no magnification).
The future looks good, will update later

RMc

Lowanna
Posts: 3
Joined: Mon Jan 23, 2017 2:26 pm

Re: Gehmann #579 CLS Vari-Focal Astigmatic Iris system

#22 Postby Lowanna » Mon Mar 20, 2017 6:16 pm

How is the future looking after last weekend?
Do you think the lense helped you in the horrible conditions (mirage) at the Long ranges at the Rosedale OPM?
Second place in the daily Agg was pretty awesome.

RMc
Posts: 95
Joined: Wed Jun 10, 2009 8:16 pm

Re: Gehmann #579 CLS Vari-Focal Astigmatic Iris system

#23 Postby RMc » Tue Mar 21, 2017 4:30 pm

The weekend was quite a surprise, the lens does not solve all my problems, if you look at Saturdays scores you will see that I am still a bit unsteady and had trouble reading the easterly wind (same as a lot of other people)

The westerly on Sunday was moving around but I thought it was more readable. The 1000 was a bit uncomfortable before my turn as I watched good shooters get hammered to low 40s and mid 30 scores, however when I layed down I thought the mirage looked to be the dominate indicator and shot of it. Every shot I moved no more than 1/2 a minute, but moved on every shot. The lens does not allow me to see through the mirage but allows me to achieve a repeatable sight picture. I thought that I may have got a dream run but when looking across the boards, other shooters who shot at the same time did not get the same luck.

Time will tell if this was a once off outcome, next competition will be at Easter, so I will get a bit of practice before then and try again.

RMc

JAY AYE
Posts: 9
Joined: Sun Nov 28, 2010 8:26 pm

Re: Gehmann #579 CLS Vari-Focal Astigmatic Iris system

#24 Postby JAY AYE » Fri Sep 08, 2017 5:58 pm

lee_enfield223 wrote:got one of the aos sights it didn't seem to make much of an improvement

If you read all of the write up on Sinclairs regarding the aos sight, they state that you should have at least a 33" sight radius and to turn the rear iris to 1.5 of which they claim gives the best results.I also have been gradually getting sighting problems seems to be an old bugga's problem. If these work and for the price which is far cheaper than the Gehmann certainly could be worth trying, so is there anyone out there that have found them to work ????

lee_enfield223
Posts: 66
Joined: Fri Apr 29, 2016 6:38 pm
Location: SYDNEY Australia

Re: Gehmann #579 CLS Vari-Focal Astigmatic Iris system

#25 Postby lee_enfield223 » Fri Oct 06, 2017 7:50 pm

ok an update I still use my Gehmann aos and there's two types one is the one to suit small bore rifles, But I got onto another supplier in the USA who sells a shorter sight radius version to suit ar15's and M14's these are perfect and suit a 26 inch barrel and are here. also I have been using the Gehmann 0.0 diopta and bought another as they are really great to use, you need to adjust it till you just have the target and front sight in focus, NO it's not perfect but it's dam close.
http://bulletin.accurateshooter.com/201 ... ce-rifles/

https://www.youtube.com/watch?v=wOJYYwytD8g


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