PF Holiday Loyal Site Supporter Special | December Pentax Lens Tournament

**matroxication** · 07-07-2017, 09:23 PM

Is there any software for focus tuning for Pentax K1?

Ian Stuart Forsyth · 07-07-2017, 09:31 PM

Originally posted by rawr

Note that Nikon DSLR's (or Sony, and also Canon I think) don't even include the option to do pixel mapping in-camera to clean up dead pixels, something even entry-level Pentaxes have had on the menu for ages.

With some Nikon if you clean the sensor twice in succession they will map out dead pixels

zapp · 02-15-2018, 11:30 AM

Originally posted by rawr

You can fine tune for individual lenses. The camera can store the settings for 20 different lenses of the user.

What happens when lens 21 is calibrated?
By user do you mean user setting U1-U5 or an individual camera?

**pschlute** · 02-16-2018, 02:31 AM

Originally posted by zapp

What happens when lens 21 is calibrated?
By user do you mean user setting U1-U5 or an individual camera?

No idea on the first question, i don't own 21 AF lenses ! Perhaps it overwrites one of the previous settings.

The 20 A/F Fine adjustment settings are per camera , not specifically associated with the USER modes. There is in addition a global A/F Fine Adjustment setting that you can use which will be applied if you attach a lens that has not been calibrated individually.

Gerard_Dirks · 02-18-2018, 04:32 AM

Hello

I read about an Issue with this lens in the "Lens Database"; Sigma 35mm F1.4 DG HSM (Art) Lens Reviews - Sigma Lenses - Pentax Lens Review Database

Nothing is wrote about what the exactly problem was?

Has someone more details?

Gérard

Paul the Sunman · 02-18-2018, 04:43 AM

Originally posted by Gerard_Dirks

Hello

I read about an Issue with this lens in the "Lens Database"; Sigma 35mm F1.4 DG HSM (Art) Lens Reviews - Sigma Lenses - Pentax Lens Review Database

Nothing is wrote about what the exactly problem was?

Has someone more details?

Gérard

The mount slightly scratches the body of the K1. The deeper bezel fixes the problem.

Read more at: Issue with Sigma 35mm 1.4 Art and Pentax K1 - Page 3 - PentaxForums.com

Gerard_Dirks · 02-18-2018, 05:06 AM

Can you buy this "deeper bezel"?

Paul the Sunman · 02-18-2018, 05:30 PM

Originally posted by Gerard_Dirks

Can you buy this "deeper bezel"?

Sigma offer the replacement free of charge, including installation. The Swiss agent is listed on

https://www.sigma-global.com/en/about/world-network/

Sorver · 02-21-2018, 05:59 PM

Guess I have been super lucky with this lens then, I love it and not had an issue with the focus. This photo was taken this weekend and heavily cropped so focus must be ok if I can have a selection of flowers and still get the bee pretty sharp.

02-18-2018, 04:32 AM	#35
Gerard_Dirks Senior Member Join Date: Aug 2013 Location: St. Gallen Posts: 139	Hello I read about an Issue with this lens in the "Lens Database"; Sigma 35mm F1.4 DG HSM (Art) Lens Reviews - Sigma Lenses - Pentax Lens Review Database Nothing is wrote about what the exactly problem was? Has someone more details? Gérard Attached Images

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07-07-2017, 09:23 PM	#31
matroxication Loyal Site Supporter Join Date: Dec 2016 Photos: Gallery Posts: 111 Original Poster	Is there any software for focus tuning for Pentax K1?

07-07-2017, 09:31 PM	#32
Ian Stuart Forsyth Pentaxian Join Date: May 2009 Location: Somewhere over the rainbow Photos: Gallery Posts: 960	Originally posted by rawr Note that Nikon DSLR's (or Sony, and also Canon I think) don't even include the option to do pixel mapping in-camera to clean up dead pixels, something even entry-level Pentaxes have had on the menu for ages. With some Nikon if you clean the sensor twice in succession they will map out dead pixels

02-15-2018, 11:30 AM	#33
zapp Pentaxian Join Date: Jul 2011 Posts: 1,761	Originally posted by rawr You can fine tune for individual lenses. The camera can store the settings for 20 different lenses of the user. What happens when lens 21 is calibrated? By user do you mean user setting U1-U5 or an individual camera?

02-16-2018, 02:31 AM	#34
pschlute Loyal Site Supporter Join Date: Mar 2007 Location: Surrey, UK Photos: Gallery Posts: 4,549	Originally posted by zapp What happens when lens 21 is calibrated? By user do you mean user setting U1-U5 or an individual camera? No idea on the first question, i don't own 21 AF lenses ! Perhaps it overwrites one of the previous settings. The 20 A/F Fine adjustment settings are per camera , not specifically associated with the USER modes. There is in addition a global A/F Fine Adjustment setting that you can use which will be applied if you attach a lens that has not been calibrated individually.

02-18-2018, 04:43 AM	#36
Paul the Sunman Pentaxian Join Date: Aug 2011 Location: Melbourne Photos: Gallery Posts: 2,922	Originally posted by Gerard_Dirks Hello I read about an Issue with this lens in the "Lens Database"; Sigma 35mm F1.4 DG HSM (Art) Lens Reviews - Sigma Lenses - Pentax Lens Review Database Nothing is wrote about what the exactly problem was? Has someone more details? Gérard The mount slightly scratches the body of the K1. The deeper bezel fixes the problem. Read more at: Issue with Sigma 35mm 1.4 Art and Pentax K1 - Page 3 - PentaxForums.com

02-18-2018, 05:06 AM	#37
Gerard_Dirks Senior Member Join Date: Aug 2013 Location: St. Gallen Posts: 139	Can you buy this "deeper bezel"?

02-18-2018, 05:30 PM	#38
Paul the Sunman Pentaxian Join Date: Aug 2011 Location: Melbourne Photos: Gallery Posts: 2,922	Originally posted by Gerard_Dirks Can you buy this "deeper bezel"? Sigma offer the replacement free of charge, including installation. The Swiss agent is listed on https://www.sigma-global.com/en/about/world-network/

02-21-2018, 05:59 PM	#39
Sorver Veteran Member Join Date: May 2014 Posts: 440	Guess I have been super lucky with this lens then, I love it and not had an issue with the focus. This photo was taken this weekend and heavily cropped so focus must be ok if I can have a selection of flowers and still get the bee pretty sharp.

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