Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
11-21-2018, 03:13 AM   #1
Forum Member




Join Date: Jul 2018
Posts: 56
Amp glow in astrophotography shots

Hi,

I have used recently my K-1 II for some astro-landscape shots in Nepal. All RAWs were taken at ISO 500 to avoid noise reduction.



I discovered that after a significant push (4/5 ev) the frames display a significant amp glow at the bottom. True the shots were made in complete darkness, during a moonless night high in the mountain, but I don't remember of such a behavior with my K-3 II (although I did not conduct comparison tests)


I shot some dark frames afterwards at home and it completely removed the problem, the final picture looks fine (see Milky Way above the Himalayas - PentaxForums.com)

However I'm wondering whether this is the normal behavior of the camera.

thanks !

Dan

Attached Images
View Picture EXIF
PENTAX K-1 Mark II  Photo 

Last edited by Dan Paris; 11-21-2018 at 03:19 AM.
11-21-2018, 01:34 PM   #2
Site Supporter
Site Supporter




Join Date: Mar 2008
Location: Prince George, BC
Photos: Gallery | Albums
Posts: 2,708
It is possible that it could also be light leaking through the viewfinder. Amp glow is usually taken care of by using bias frames during post-processing. My K-3 and K-1 both exhibit minor amp glow but is removed easily.

Jack
11-22-2018, 03:26 AM   #3
Forum Member




Join Date: Jul 2018
Posts: 56
Original Poster
QuoteOriginally posted by jbinpg Quote
It is possible that it could also be light leaking through the viewfinder. Amp glow is usually taken care of by using bias frames during post-processing. My K-3 and K-1 both exhibit minor amp glow but is removed easily.

Jack
Thanks Jack for your input. I don't think it can come from the viewfinder it was pitch dark and the LCD was off.

I agree one can easily correct it l was just wondering if it was normal for this camera

Dan
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
amp glow, behavior, dslr, frames, full frame, full-frame, glow, ii, k-1, k1, pentax k-1, shots
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Night First Astrophotography Shots hoopsontoast Post Your Photos! 4 09-22-2014 10:11 AM
For Sale - Sold: (AUS) SMC Pentax-M 50mm/1.4 & A35-105mm/3.5 & MV1 body & DB1 Grip (AUS) ddhytz Sold Items 4 04-22-2010 03:28 AM
For Sale - Sold: [US] K7 Body & grip, K20 Body & grip, DA* 16-50 2.8, DA* 50-135 2.8, & more andyschwartz Sold Items 4 03-09-2010 10:23 PM



All times are GMT -7. The time now is 12:54 AM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top