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JeffJS · 11-11-2010, 01:40 AM

Anybody want to play with a couple ISO 80, long exposure shots (in case you need to be pushed further toward the K5 edge), Go on and have a stab at them. Nothing spectacular but still might be fun to play with (yes, I know I have a couple dust spots on my sensor).

4 Minutes

17 minutes

gazonk · 11-11-2010, 04:36 AM

Originally posted by JeffJS

Anybody want to play with a couple ISO 80, long exposure shots (in case you need to be pushed further toward the K5 edge), Go on and have a stab at them. Nothing spectacular but still might be fun to play with (yes, I know I have a couple dust spots on my sensor).

That much dust already?

Anyway, that 4 minute dark exposure was fun to play with, I can't find any banding or other patterned noise in it at all.

Here's my "artsy" version of it

**jpzk** · 11-11-2010, 07:33 AM

Originally posted by JeffJS

Anybody want to play with a couple ISO 80, long exposure shots (in case you need to be pushed further toward the K5 edge), Go on and have a stab at them. Nothing spectacular but still might be fun to play with (yes, I know I have a couple dust spots on my sensor).

4 Minutes

17 minutes

Jeff,

I clicked on your links and I am getting very small images from what seem to be Quick Time files.
Can't see the pictures as they should show.

But I have questions: did the K5 get into DFS while doing these long exposures?
If so, what do you think about the results you are getting? Happy with that?

JP

Raylon · 11-11-2010, 07:37 AM

These aren't long at all, go check out the star trails thread. Now that is a long, clean, and beautiful 90 minute exposure.

But yes same thing as jpzk, it's showing up as a quicktime file....

gazonk · 11-11-2010, 07:43 AM

Originally posted by jpzk

I clicked on your links and I am getting very small images from what seem to be Quick Time files.

That's just the preview, I think, I could still save the DNGs.

JackBak · 11-11-2010, 07:44 AM

The downloads show up for me as DNGs that the Win7 OS asks if Picasa should open (which works fine). Hope that helps given those details (maybe try Picasa).

**Ex Finn.** · 11-11-2010, 08:33 AM

They open up fine With photo-shop and XP-pro sp3.

JeffJS · 11-11-2010, 10:33 AM

Originally posted by jpzk

Jeff,

I clicked on your links and I am getting very small images from what seem to be Quick Time files.
Can't see the pictures as they should show.

But I have questions: did the K5 get into DFS while doing these long exposures?
If so, what do you think about the results you are getting? Happy with that?

JP

Originally posted by Raylon

These aren't long at all, go check out the star trails thread. Now that is a long, clean, and beautiful 90 minute exposure.

But yes same thing as jpzk, it's showing up as a quicktime file....

I don't know what you're expecting to see when you click the links. I don't know anything about Quicktime, these are DNG RAW files, Not finished JPG photos.

JP, I have DFS turned off. A misconception is that it occurs During the exposure. It does not, it occurs After the exposure. Effectively making the exposure time twice as long. Yes, I'm happy that I can turn it off.

BTW, 17 minutes was long enough for me to stand outside freezing my ass off. Not that I couldn't use the loss, a big chunk of it broke off when I tried to walk back in the house. I salute the people who have the patience to get 1.75 hour exposures, right now, I'm not one of them.

Quote:

That much dust already?

It's clean now. Either the shaker or the blower took care of it, couldn't say which. I also discovered the front element was filthy too but I doubt that has anything to do with it. Perhaps one or two of the less defined spots.

Cool translation by the way. I'd like to see more...

Here's mine.

Raylon · 11-11-2010, 11:56 AM

Originally posted by JeffJS

I don't know what you're expecting to see when you click the links. I don't know anything about Quicktime, these are DNG RAW files, Not finished JPG photos.

I was using Safari on my Mac and apparently it was doing something weird, it wanted to open it with Quicktime. I am aware of what a DNG is.

JeffJS · 11-11-2010, 02:06 PM

Originally posted by Raylon

I was using Safari on my Mac and apparently it was doing something weird, it wanted to open it with Quicktime. I am aware of what a DNG is.

DNG = Digital Negative

Google is your friend.

DNG, digital negative | Adobe

Raylon · 11-11-2010, 06:59 PM

Originally posted by JeffJS

DNG = Digital Negative

Google is your friend.

DNG, digital negative | Adobe

Uhhm, I guess I will quote myself again...

Originally posted by Raylonn:

I am aware of what a DNG is.

dgaies · 11-11-2010, 07:03 PM

Originally posted by Raylon

I was using Safari on my Mac and apparently it was doing something weird, it wanted to open it with Quicktime. I am aware of what a DNG is.

Does the same thing on my computer (PC w/ Google Chrome) if I accidentally click on the link instead of right-click-save-as.

michalko99 · 11-12-2010, 03:52 PM

hello. In star trails thread you can see my result with k20 I own. Not so bad I think..

https://www.pentaxforums.com/forums/general-photography/69481-night-star-pict...estions-4.html

Its 8th post from top(2 pictures)

Michal

11-11-2010, 01:40 AM	#1
JeffJS Inactive Account Join Date: Aug 2008 Location: Michigan, USA Photos: Gallery \| Albums Posts: 7,484	Low ISO - LOOOOOOONG exposure Anybody want to play with a couple ISO 80, long exposure shots (in case you need to be pushed further toward the K5 edge), Go on and have a stab at them. Nothing spectacular but still might be fun to play with (yes, I know I have a couple dust spots on my sensor). 4 Minutes 17 minutes

11-11-2010, 10:33 AM	#8
JeffJS Inactive Account Join Date: Aug 2008 Location: Michigan, USA Photos: Gallery \| Albums Posts: 7,484 Original Poster	Originally posted by jpzk Jeff, I clicked on your links and I am getting very small images from what seem to be Quick Time files. Can't see the pictures as they should show. But I have questions: did the K5 get into DFS while doing these long exposures? If so, what do you think about the results you are getting? Happy with that? JP Originally posted by Raylon These aren't long at all, go check out the star trails thread. Now that is a long, clean, and beautiful 90 minute exposure. But yes same thing as jpzk, it's showing up as a quicktime file.... I don't know what you're expecting to see when you click the links. I don't know anything about Quicktime, these are DNG RAW files, Not finished JPG photos. JP, I have DFS turned off. A misconception is that it occurs During the exposure. It does not, it occurs After the exposure. Effectively making the exposure time twice as long. Yes, I'm happy that I can turn it off. BTW, 17 minutes was long enough for me to stand outside freezing my ass off. Not that I couldn't use the loss, a big chunk of it broke off when I tried to walk back in the house. I salute the people who have the patience to get 1.75 hour exposures, right now, I'm not one of them. Quote: That much dust already? It's clean now. Either the shaker or the blower took care of it, couldn't say which. I also discovered the front element was filthy too but I doubt that has anything to do with it. Perhaps one or two of the less defined spots. Cool translation by the way. I'd like to see more... Here's mine. Last edited by JeffJS; 11-11-2010 at 10:52 AM.

11-12-2010, 03:52 PM	#13
michalko99 New Member Join Date: Aug 2009 Location: Rabča Posts: 22	loooooooooooong exposure hello. In star trails thread you can see my result with k20 I own. Not so bad I think.. https://www.pentaxforums.com/forums/general-photography/69481-night-star-pict...estions-4.html Its 8th post from top(2 pictures) Michal

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11-11-2010, 04:36 AM	#2
gazonk Pentaxian Join Date: Feb 2009 Location: Oslo area, Norway Photos: Gallery \| Albums Posts: 3,746	Originally posted by JeffJS Anybody want to play with a couple ISO 80, long exposure shots (in case you need to be pushed further toward the K5 edge), Go on and have a stab at them. Nothing spectacular but still might be fun to play with (yes, I know I have a couple dust spots on my sensor). That much dust already? Anyway, that 4 minute dark exposure was fun to play with, I can't find any banding or other patterned noise in it at all. Here's my "artsy" version of it

11-11-2010, 07:33 AM	#3
jpzk Site Supporter Join Date: Jan 2009 Location: Québec Photos: Gallery \| Albums Posts: 8,251	Originally posted by JeffJS Anybody want to play with a couple ISO 80, long exposure shots (in case you need to be pushed further toward the K5 edge), Go on and have a stab at them. Nothing spectacular but still might be fun to play with (yes, I know I have a couple dust spots on my sensor). 4 Minutes 17 minutes Jeff, I clicked on your links and I am getting very small images from what seem to be Quick Time files. Can't see the pictures as they should show. But I have questions: did the K5 get into DFS while doing these long exposures? If so, what do you think about the results you are getting? Happy with that? JP

11-11-2010, 07:37 AM	#4
Raylon Guest	These aren't long at all, go check out the star trails thread. Now that is a long, clean, and beautiful 90 minute exposure. But yes same thing as jpzk, it's showing up as a quicktime file....

11-11-2010, 07:43 AM	#5
gazonk Pentaxian Join Date: Feb 2009 Location: Oslo area, Norway Photos: Gallery \| Albums Posts: 3,746	Originally posted by jpzk I clicked on your links and I am getting very small images from what seem to be Quick Time files. That's just the preview, I think, I could still save the DNGs.

11-11-2010, 07:44 AM	#6
JackBak Forum Member Join Date: Jul 2008 Location: Boulder, Colorado Posts: 88	The downloads show up for me as DNGs that the Win7 OS asks if Picasa should open (which works fine). Hope that helps given those details (maybe try Picasa).

11-11-2010, 08:33 AM	#7
Ex Finn. Site Supporter Join Date: Nov 2007 Location: Southern Maryland. Espoo. Kouvola. Photos: Gallery \| Albums Posts: 7,975	They open up fine With photo-shop and XP-pro sp3.

11-11-2010, 11:56 AM	#9
Raylon Guest	Originally posted by JeffJS I don't know what you're expecting to see when you click the links. I don't know anything about Quicktime, these are DNG RAW files, Not finished JPG photos. I was using Safari on my Mac and apparently it was doing something weird, it wanted to open it with Quicktime. I am aware of what a DNG is.

11-11-2010, 02:06 PM	#10
JeffJS Inactive Account Join Date: Aug 2008 Location: Michigan, USA Photos: Gallery \| Albums Posts: 7,484 Original Poster	Originally posted by Raylon I was using Safari on my Mac and apparently it was doing something weird, it wanted to open it with Quicktime. I am aware of what a DNG is. DNG = Digital Negative Google is your friend. DNG, digital negative \| Adobe

11-11-2010, 06:59 PM	#11
Raylon Guest	Originally posted by JeffJS DNG = Digital Negative Google is your friend. DNG, digital negative \| Adobe Uhhm, I guess I will quote myself again... Originally posted by Raylonn: I am aware of what a DNG is.

11-11-2010, 07:03 PM	#12
dgaies Veteran Member Join Date: Oct 2009 Location: Maryland / Washington DC Posts: 3,917	Originally posted by Raylon I was using Safari on my Mac and apparently it was doing something weird, it wanted to open it with Quicktime. I am aware of what a DNG is. Does the same thing on my computer (PC w/ Google Chrome) if I accidentally click on the link instead of right-click-save-as.

Low ISO - LOOOOOOONG exposure

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