645D bugs? or my misunderstandings..

spacevoid8 · 08-03-2011, 04:17 AM

1) i turn on iso expansion in custom menu, but can`t select iso 100, iso1600 is available though, i shoot in manual mode. is it a bug?

2) i turn off noise reduction, but when shooting long exposure pictures i have to wait when Pentax ends his NR job (blinking NR on top-display) Very annoying and longish process.... one more bug? NR in camera can`t compare NR in Photoshop (Noise Ninja or Neat Image)...

3)what about pixel mapping, is it working? it seems that i have 3 dead pixels which appearing under certain circumstances.. progress bar goes to 50% than to 100% (very quickly) and nothing happens, camera showing no report at all. please advice..

ps i have latest firmware 1.11

Last edited by spacevoid8; 08-03-2011 at 04:19 AM. Reason: removed some syntax mistakes

Adam · 08-03-2011, 04:25 AM

1. Disable expanded dynamic range in your shooting menu

2. Disable "Slow-shutter speed noise reduction". This is separate from regular noise reduction.

3. Not sure.

spacevoid8 · 08-03-2011, 04:35 AM

Adam, thank you so much for such quick response. I`ll try your advices to night, when i`ll be at home.

I`m looking forward to hear about pixel mapping from wise guys

RonHendriks1966 · 08-03-2011, 06:53 AM

It doesn't give any messages when doing pixelmapping. Did it help solve your dead pixels when jpg's are turning out of the camera? (I'm guessing in the dark parts of an image).

spacevoid8 · 08-03-2011, 10:00 PM

Originally posted by Adam

1. Disable expanded dynamic range in your shooting menu

this helps!

Originally posted by Adam

2. Disable "Slow-shutter speed noise reduction". This is separate from regular noise reduction.

strange but i find this option turned off already...

Originally posted by RonHendriks1966

Did it help solve your dead pixels when jpg's are turning out of the camera?

i shot in raw only, don`t have time to test this feature..

spacevoid8 · 08-05-2011, 09:50 AM

Slow-shutter speed noise reduction is set in off position, and NR never the less is applied, very weird

Hopka · 08-05-2011, 12:15 PM

The firmware on the 645D is based on the K-7 and K-5 Firmware. On my K-7, the noise reduction is also always performed when the exposure time is longer than 30 seconds, no matter if I turn it off or not.
I read somewhere that this is normal (although annoying).

spacevoid8 · 08-05-2011, 12:28 PM

hm..it`s awful...night shoots when temperature is low is battery consuming...interesting is there any workaround? maybe turnoff camera when NR begins to work..

itshimitis · 08-05-2011, 04:25 PM

Originally posted by spacevoid8

hm..it`s awful...night shoots when temperature is low is battery consuming...interesting is there any workaround? maybe turnoff camera when NR begins to work..

That doesn't work. It restarts where it stops. Tried that tonight as light was changing rapidly, and had amazing light tonight....

spacevoid8 · 08-05-2011, 11:08 PM

i`ll try to ask Pentax tech support, see what they say..

itshimitis · 08-06-2011, 04:21 AM

Originally posted by spacevoid8

i`ll try to ask Pentax tech support, see what they say..

I've emailed the Operations Manager for Pentax UK who helped me with my repair. I'll fee back the response. It's annoying because I had amazing light last night but wasn't able to take full advantage of it as had to wait for the camera to be ready. I can see a need for NR on it, but if you're shooting ISO of 100 or 200 it's not exactly a huge need

spacevoid8 · 08-06-2011, 05:41 AM

Originally posted by itshimitis

I can see a need for NR on it, but if you're shooting ISO of 100 or 200 it's not exactly a huge need

100% agreed!!!!

spacevoid8 · 08-12-2011, 08:35 AM

Originally posted by itshimitis

I've emailed the Operations Manager for Pentax UK who helped me with my repair. I'll fee back the response. It's annoying because I had amazing light last night but wasn't able to take full advantage of it as had to wait for the camera to be ready. I can see a need for NR on it, but if you're shooting ISO of 100 or 200 it's not exactly a huge need

is there any progress in our problem?

spacevoid8 · 08-12-2011, 12:28 PM

https://www.pentaxforums.com/forums/1612609-post10.html

08-03-2011, 04:17 AM	#1
spacevoid8 Forum Member Join Date: May 2011 Location: Russia/Moscow Posts: 55	645D bugs? or my misunderstandings.. 1) i turn on iso expansion in custom menu, but can`t select iso 100, iso1600 is available though, i shoot in manual mode. is it a bug? 2) i turn off noise reduction, but when shooting long exposure pictures i have to wait when Pentax ends his NR job (blinking NR on top-display) Very annoying and longish process.... one more bug? NR in camera can`t compare NR in Photoshop (Noise Ninja or Neat Image)... 3)what about pixel mapping, is it working? it seems that i have 3 dead pixels which appearing under certain circumstances.. progress bar goes to 50% than to 100% (very quickly) and nothing happens, camera showing no report at all. please advice.. ps i have latest firmware 1.11 Last edited by spacevoid8; 08-03-2011 at 04:19 AM. Reason: removed some syntax mistakes

08-03-2011, 04:25 AM	#2
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 49,836	1. Disable expanded dynamic range in your shooting menu 2. Disable "Slow-shutter speed noise reduction". This is separate from regular noise reduction. 3. Not sure. Adam PentaxForums.com Webmaster (Site Usage Guide \| Site Help \| My Photography) PentaxForums.com server and development costs are user-supported. You can help cover these costs by donating. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, KEH, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

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08-03-2011, 04:35 AM	#3
spacevoid8 Forum Member Join Date: May 2011 Location: Russia/Moscow Posts: 55 Original Poster	Adam, thank you so much for such quick response. I`ll try your advices to night, when i`ll be at home. I`m looking forward to hear about pixel mapping from wise guys

08-03-2011, 06:53 AM	#4
RonHendriks1966 Banned Join Date: Jan 2009 Photos: Gallery Posts: 9,674	It doesn't give any messages when doing pixelmapping. Did it help solve your dead pixels when jpg's are turning out of the camera? (I'm guessing in the dark parts of an image).

08-03-2011, 10:00 PM	#5
spacevoid8 Forum Member Join Date: May 2011 Location: Russia/Moscow Posts: 55 Original Poster	Originally posted by Adam 1. Disable expanded dynamic range in your shooting menu this helps! Originally posted by Adam 2. Disable "Slow-shutter speed noise reduction". This is separate from regular noise reduction. strange but i find this option turned off already... Originally posted by RonHendriks1966 Did it help solve your dead pixels when jpg's are turning out of the camera? i shot in raw only, don`t have time to test this feature..

08-05-2011, 09:50 AM	#6
spacevoid8 Forum Member Join Date: May 2011 Location: Russia/Moscow Posts: 55 Original Poster	Slow-shutter speed noise reduction is set in off position, and NR never the less is applied, very weird

08-05-2011, 12:15 PM	#7
Hopka Junior Member Join Date: Dec 2009 Location: Köln Photos: Gallery Posts: 42	The firmware on the 645D is based on the K-7 and K-5 Firmware. On my K-7, the noise reduction is also always performed when the exposure time is longer than 30 seconds, no matter if I turn it off or not. I read somewhere that this is normal (although annoying).

08-05-2011, 12:28 PM	#8
spacevoid8 Forum Member Join Date: May 2011 Location: Russia/Moscow Posts: 55 Original Poster	hm..it`s awful...night shoots when temperature is low is battery consuming...interesting is there any workaround? maybe turnoff camera when NR begins to work..

08-05-2011, 04:25 PM	#9
itshimitis Pentaxian Join Date: May 2011 Location: All over the place Posts: 2,930	Originally posted by spacevoid8 hm..it`s awful...night shoots when temperature is low is battery consuming...interesting is there any workaround? maybe turnoff camera when NR begins to work.. That doesn't work. It restarts where it stops. Tried that tonight as light was changing rapidly, and had amazing light tonight....

08-05-2011, 11:08 PM	#10
spacevoid8 Forum Member Join Date: May 2011 Location: Russia/Moscow Posts: 55 Original Poster	i`ll try to ask Pentax tech support, see what they say..

08-06-2011, 04:21 AM	#11
itshimitis Pentaxian Join Date: May 2011 Location: All over the place Posts: 2,930	Originally posted by spacevoid8 i`ll try to ask Pentax tech support, see what they say.. I've emailed the Operations Manager for Pentax UK who helped me with my repair. I'll fee back the response. It's annoying because I had amazing light last night but wasn't able to take full advantage of it as had to wait for the camera to be ready. I can see a need for NR on it, but if you're shooting ISO of 100 or 200 it's not exactly a huge need

08-06-2011, 05:41 AM	#12
spacevoid8 Forum Member Join Date: May 2011 Location: Russia/Moscow Posts: 55 Original Poster	Originally posted by itshimitis I can see a need for NR on it, but if you're shooting ISO of 100 or 200 it's not exactly a huge need 100% agreed!!!!

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08-12-2011, 08:35 AM	#13
spacevoid8 Forum Member Join Date: May 2011 Location: Russia/Moscow Posts: 55 Original Poster	Originally posted by itshimitis I've emailed the Operations Manager for Pentax UK who helped me with my repair. I'll fee back the response. It's annoying because I had amazing light last night but wasn't able to take full advantage of it as had to wait for the camera to be ready. I can see a need for NR on it, but if you're shooting ISO of 100 or 200 it's not exactly a huge need is there any progress in our problem?

08-12-2011, 12:28 PM	#14
spacevoid8 Forum Member Join Date: May 2011 Location: Russia/Moscow Posts: 55 Original Poster	https://www.pentaxforums.com/forums/1612609-post10.html