Dear Pentax

Boris · 09-13-2010, 01:09 AM

Dear Pentax

.

Some criticize K-7 and other cameras for Dark Frame Subtraction (DFS) during extremely long exposures (1/2 hour and longer). Effectively, DFS shortens the night by half.

What if it were possible to pre-perform the DFS exposure say by opening the shutter for an hour and saving a special DFS image file every 10 minutes. Then, during the actual shoot the photographer wouldn't have to wait for DFS, but rather camera will take the ready image from the card. The pre-shoot DFS exposure could be an option from the camera menu that will greatly improve the usability of the camera. The regular DFS can be retained of course.

Class A · 09-13-2010, 02:51 AM

Originally posted by Boris

What if it were possible to pre-perform the DFS exposure say by opening the shutter for an hour and saving a special DFS image file every 10 minutes.

The idea about DFS is that the dark frame is taken under the same conditions (in particular sensor temperature and shutter speed) as the actual image. That's why it makes sense to always take the DF right before or after the actual image.

What you suggest often works as an approximation but you'd only need one DF, not a serious of six.

noVICE · 09-14-2010, 08:26 AM

Dear Pentax,

Please formally address the SDM issue. As a consumer I am reluctant to invest in current SDM lenses due to the negative feedback from a considerable number of users.
Releasing "SDM II" would effectively give the system a clean slate and would generate more sales to people like myself and current users who have experienced problems with the existing SDM technology.

Thanks.

512 · 09-14-2010, 01:47 PM

Dear Pentax,

with your next firmware update I'll appriciate the following upgrades:
- remote-controlled continuous shooting (high speed)
- F/B Focus correction menu
- 90mm selectable in the SR menu when an old/manual lens is used

thank you

Arpe · 09-14-2010, 03:05 PM

Originally posted by noVICE

Dear Pentax,

Please formally address the SDM issue. As a consumer I am reluctant to invest in current SDM lenses due to the negative feedback from a considerable number of users.
Releasing "SDM II" would effectively give the system a clean slate and would generate more sales to people like myself and current users who have experienced problems with the existing SDM technology.

Thanks.

Damn straight. I am not buying any SDM lenses until this happens.

Originally posted by 512

Dear Pentax,

with your next firmware update I'll appriciate the following upgrades:
- remote-controlled continuous shooting (high speed)
- F/B Focus correction menu
- 90mm selectable in the SR menu when an old/manual lens is used

thank you

Which camera, they may want to know?

512 · 09-14-2010, 03:12 PM

Originally posted by Arpe

Which camera, they may want to know?

sorry, I forgot it: k-x

bats · 09-15-2010, 02:12 PM

Dear Pentax,

Please publish a roadmap. Any kind of roadmap.

A long-time saleman at Keeble & Shuchat (a major camera retailer just south of San Francisco) told me today that K&S used to carry Pentax but "Pentax went bankrupt, then got bought out, and now they are only going to put out just one more camera before they leave the business." If that is typical of the perception out there, you have a real problem.

Also, add my voice to the list of people who need to turn off DFS. I take long exposures at night -- sometimes in the range of 4 to 7 minutes. It is unacceptable to have the camera turn into a brick while it attempts to eliminate noise. I do noise reduction in post-processing.

Bob
(Worried about DFS when I upgrade from my K10D)

SpecialK · 09-15-2010, 03:22 PM

Originally posted by Arpe

Pentax, please make the file numbers able to go to more than 8 characters. I love being able to dictate what the first 4 characters are going to be, but then when the image number rolls over to 9999, why can't the file name be extended by 1 character so I can have image 10000? Computers these days are not constrained by the 8.3 file naming system.

I am now having to rename all my new images as I have clocked over 9999 images.

This is easily fixable for older cameras in firmware updates by the way - hint hint.

Get the free Flexible Renamer v8.2 and rename IMGP to the YYMMDD format and never worry about duplicate file names.

dopeytree · 09-16-2010, 02:41 PM

buttons that light up so so you can see what your doing at night. The most important being the mode dial!

This could be configured by the menu system. and could work much like the lighting of the top panel display. It could be turned off by the user aswell.

Ken T · 09-19-2010, 12:50 PM

Dear Pentax,
I would love to have articulate LCD monitor implemented on your DSLR line .

dopeytree · 09-20-2010, 12:36 PM

Please pentax give us k-7 and k-5 users manual video controls.

I want to set or limit my iso and shutter speeds for visual effects.

I don't care about af in video!!!!

illdefined · 09-20-2010, 12:39 PM

PLEASE allow us to control the top LCD illumination in our cameras, and allow it to be activated like the K20D

**jon.partsch** · 09-20-2010, 01:28 PM

PLEASE, PLEASE, PLEASE provide 12 bit RAW option on the K-5

m8o · 09-20-2010, 01:36 PM

My Dearest Pentax,

Thank You.

Best Regards,
-steve

Arpe · 09-20-2010, 07:37 PM

Dear Pentax,

Seeing as you seem unwilling or unable to have the SR permanently on in some manner so we don't have to wait the half second and miss the shot, how about at least making it activate when we press the AF button? Thta' really just like the shutter button half press isn't it? Please?

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09-13-2010, 01:09 AM	#616
Boris Veteran Member Join Date: Mar 2008 Location: Israel Photos: Gallery \| Albums Posts: 932	Dear Pentax . Some criticize K-7 and other cameras for Dark Frame Subtraction (DFS) during extremely long exposures (1/2 hour and longer). Effectively, DFS shortens the night by half. What if it were possible to pre-perform the DFS exposure say by opening the shutter for an hour and saving a special DFS image file every 10 minutes. Then, during the actual shoot the photographer wouldn't have to wait for DFS, but rather camera will take the ready image from the card. The pre-shoot DFS exposure could be an option from the camera menu that will greatly improve the usability of the camera. The regular DFS can be retained of course.

09-13-2010, 02:51 AM	#617
Class A Pentaxian Join Date: Aug 2008 Location: Wellington, New Zealand Posts: 11,251	Originally posted by Boris What if it were possible to pre-perform the DFS exposure say by opening the shutter for an hour and saving a special DFS image file every 10 minutes. The idea about DFS is that the dark frame is taken under the same conditions (in particular sensor temperature and shutter speed) as the actual image. That's why it makes sense to always take the DF right before or after the actual image. What you suggest often works as an approximation but you'd only need one DF, not a serious of six.

09-14-2010, 08:26 AM	#618
noVICE Senior Member Join Date: Aug 2009 Location: Brisbane Photos: Gallery Posts: 164	Dear Pentax, Please formally address the SDM issue. As a consumer I am reluctant to invest in current SDM lenses due to the negative feedback from a considerable number of users. Releasing "SDM II" would effectively give the system a clean slate and would generate more sales to people like myself and current users who have experienced problems with the existing SDM technology. Thanks.

09-14-2010, 01:47 PM	#619
512 New Member Join Date: Sep 2010 Location: Milano Posts: 9	Dear Pentax, with your next firmware update I'll appriciate the following upgrades: - remote-controlled continuous shooting (high speed) - F/B Focus correction menu - 90mm selectable in the SR menu when an old/manual lens is used thank you

09-14-2010, 03:05 PM	#620
Arpe Pentaxian Join Date: Sep 2006 Location: New Zealand Photos: Gallery \| Albums Posts: 4,452	Originally posted by noVICE Dear Pentax, Please formally address the SDM issue. As a consumer I am reluctant to invest in current SDM lenses due to the negative feedback from a considerable number of users. Releasing "SDM II" would effectively give the system a clean slate and would generate more sales to people like myself and current users who have experienced problems with the existing SDM technology. Thanks. Damn straight. I am not buying any SDM lenses until this happens. Originally posted by 512 Dear Pentax, with your next firmware update I'll appriciate the following upgrades: - remote-controlled continuous shooting (high speed) - F/B Focus correction menu - 90mm selectable in the SR menu when an old/manual lens is used thank you Which camera, they may want to know?

09-14-2010, 03:12 PM	#621
512 New Member Join Date: Sep 2010 Location: Milano Posts: 9	Originally posted by Arpe Which camera, they may want to know? sorry, I forgot it: k-x

09-15-2010, 02:12 PM	#622
bats Senior Member Join Date: Sep 2010 Location: San Francisco Photos: Gallery Posts: 102	Dear Pentax, Please publish a roadmap. Any kind of roadmap. A long-time saleman at Keeble & Shuchat (a major camera retailer just south of San Francisco) told me today that K&S used to carry Pentax but "Pentax went bankrupt, then got bought out, and now they are only going to put out just one more camera before they leave the business." If that is typical of the perception out there, you have a real problem. Also, add my voice to the list of people who need to turn off DFS. I take long exposures at night -- sometimes in the range of 4 to 7 minutes. It is unacceptable to have the camera turn into a brick while it attempts to eliminate noise. I do noise reduction in post-processing. Bob (Worried about DFS when I upgrade from my K10D)

09-15-2010, 03:22 PM	#623
SpecialK Pentaxian Join Date: Dec 2006 Location: So California Photos: Gallery Posts: 16,481	Originally posted by Arpe Pentax, please make the file numbers able to go to more than 8 characters. I love being able to dictate what the first 4 characters are going to be, but then when the image number rolls over to 9999, why can't the file name be extended by 1 character so I can have image 10000? Computers these days are not constrained by the 8.3 file naming system. I am now having to rename all my new images as I have clocked over 9999 images. This is easily fixable for older cameras in firmware updates by the way - hint hint. Get the free Flexible Renamer v8.2 and rename IMGP to the YYMMDD format and never worry about duplicate file names.

09-16-2010, 02:41 PM	#624
dopeytree Veteran Member Join Date: May 2007 Location: Somerset, UK Photos: Gallery Posts: 619	buttons that light up so so you can see what your doing at night. The most important being the mode dial! This could be configured by the menu system. and could work much like the lighting of the top panel display. It could be turned off by the user aswell.

09-19-2010, 12:50 PM	#625
Ken T Veteran Member Join Date: Mar 2008 Location: California, USA Posts: 536	Dear Pentax, I would love to have articulate LCD monitor implemented on your DSLR line .

09-20-2010, 12:36 PM	#626
dopeytree Veteran Member Join Date: May 2007 Location: Somerset, UK Photos: Gallery Posts: 619	Please pentax give us k-7 and k-5 users manual video controls. I want to set or limit my iso and shutter speeds for visual effects. I don't care about af in video!!!!

09-20-2010, 12:39 PM	#627
illdefined Veteran Member Join Date: Jan 2009 Location: NYC Posts: 929	PLEASE allow us to control the top LCD illumination in our cameras, and allow it to be activated like the K20D

09-20-2010, 01:28 PM	#628
jon.partsch Site Supporter Join Date: Oct 2009 Location: Northern California Posts: 442	PLEASE, PLEASE, PLEASE provide 12 bit RAW option on the K-5

09-20-2010, 01:36 PM	#629
m8o Veteran Member Join Date: Jul 2007 Location: 40°-55'-44" N / 73°-24'-07" W [on LI] Photos: Gallery \| Albums Posts: 3,092	My Dearest Pentax, Thank You. Best Regards, -steve

09-20-2010, 07:37 PM	#630
Arpe Pentaxian Join Date: Sep 2006 Location: New Zealand Photos: Gallery \| Albums Posts: 4,452	Dear Pentax, Seeing as you seem unwilling or unable to have the SR permanently on in some manner so we don't have to wait the half second and miss the shot, how about at least making it activate when we press the AF button? Thta' really just like the shutter button half press isn't it? Please?