JohnX

Joined: 9th February 2009

All Forum Comments

Topics Created Topics Contributed Forum Comments Photo Comments

All Forum Comments

JohnX
Welcome.

Comment by JohnX posted on Hello everyone. at 19/07/2013 - 20:16

JohnX
Cut and paste of post;

"Just noticed this article on Extremetech. Some smart guy created an application employing some of the latest techniques in de-convolution blur correction and it's open-source!

http://www.extremetech.com/computing/138363-the-cia-de-blurs-license-plates-from...

Here is the developer's site and the downloads site

http://yuzhikov.com/projects.html

https://github.com/Y-Vladimir/SmartDeblur/downloads

NOPE... I haven't tried it yet so I have no idea how well this will work when applied to subtle blurring in large imagery like we have around here. I figured some of you would find this interesting anyhow."

Comment by JohnX posted on Found this over on another site. Haven't tried it yet. at 14/07/2013 - 22:47

JohnX
Blythman wrote:
Not Full AF on any lens.

The adapter AF does not function fully between the minimum focus distance and infinity. You have to manually focus to the vicinity of the target, and then let the adapter AF take over.

I also have the Sigma 150-500. But I often take the DA*300 and the 1.7x instead if I'm going to be carrying for any distance.
Got it, thanks. Not too much of a hardship then for 1.7x extra focal length.

Comment by JohnX posted on SMC Pentax-F AF Adapter 1.7X - FA28 - 2.8 - FA50 - 1.4 at 14/07/2013 - 18:55

JohnX
Blythman wrote:
Marselus wrote:
JohnX wrote:
I should know, but does this work with SDM lenses?
No i beliewe it will not work with SDM as it's missing contacts for SDM.
Works absolutely fine with SDM lenses, such as the DA*300.

https://www.pentaxuser.com/forum/topic/hare-41583

This is more than a converter. It is an adapter which will also autofocus even manual lenses
Full AF? No messing about, just bung it on and take great pictures like your hares?

Comment by JohnX posted on SMC Pentax-F AF Adapter 1.7X - FA28 - 2.8 - FA50 - 1.4 at 14/07/2013 - 16:46

JohnX
vic cross wrote:
JohnX. PM sent.
And replied to.

Comment by JohnX posted on Old Sigma lens for FREE at 14/07/2013 - 10:18

JohnX
I should know, but does this work with SDM lenses?

Comment by JohnX posted on SMC Pentax-F AF Adapter 1.7X - FA28 - 2.8 - FA50 - 1.4 at 13/07/2013 - 20:27

JohnX
Gone now?

Comment by JohnX posted on Old Sigma lens for FREE at 13/07/2013 - 10:50

JohnX
In the US Pentax were sending them out by post on request, but I understand here 'they' say it must be sent to a repairer, so the issue about liability for the repair due to an inherent fault beyond the warranty period must be open and shut?

Comment by JohnX posted on K-5 lens release button gone at 13/07/2013 - 09:37

JohnX
Any idea if it's MC or MD fit please Vic?

Comment by JohnX posted on Old Sigma lens for FREE at 12/07/2013 - 18:24

JohnX
Can we have some prices for the lenses please?

Comment by JohnX posted on K5iis with battery Grip plus spare battery at 03/07/2013 - 18:19

Proudly supporting Pentax User

Samsung Logo Asahi Pentax Logo