Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
10-01-2016, 11:35 AM   #1
Site Supporter
micromacro's Avatar

Join Date: Jan 2014
Location: Florida
Posts: 3,033
K-1 multiply exposure question, how many images have you tried to compose?

The number of 2000 images in multiply exposure bugs my mind
I wonder in what cases and for what result someone may need to compose 2000 images together using multiply exposure?
I usually play with no more than 3, but I don't use that feature often.

What the biggest number of images did you use so far with K-1?
And the most interesting, did someone actually tried all 2000 shoots in multiply exposure mode?

10-01-2016, 12:01 PM   #2
Pentaxian




Join Date: Dec 2010
Location: Ontario
Photos: Gallery
Posts: 2,432
My goodness, 2000 is an awesome limit.

I've used the k5iis' pretty meagre 9 exposures to fake a single longer exposure. Looking at the K-1's manual, this should work with 'average mode'.

Another "my goodness", I see there's a "Bright" mode for the k-1 whose description looks like blending layers with "Lighten" mode in Photoshop? If so, I'd love to have that as an in-camera option, terrific for fireflies or star trails.
10-01-2016, 12:49 PM   #3
Site Supporter
micromacro's Avatar

Join Date: Jan 2014
Location: Florida
Posts: 3,033
Original Poster
2000 is impesive number, and I wonder now when practically to use it?

It started when I told the Nikon guy that my camera has multiply exposure up to 2000 shoots. He told, it's impossible, you must be mistaken. Nope.
Ok, he said, it may be a number of 2000, but in reality can it work? Shoot it all. Nope, I'm not going to waste my time, shutter and battery life for proving something. If it's in the menu, it does work (thinking, then you buy your own K-1 and do it )
And now I'm thinking that I have no idea in what cases someone will need 2000 images to compose in one?
10-01-2016, 12:56 PM   #4
Site Supporter




Join Date: Mar 2008
Location: Prince George, BC
Photos: Gallery
Posts: 2,279
I think one answer would be star trails, and possibly in bright mode rather than average. Bright mode may avoid the blow out of the background.

10-01-2016, 01:12 PM   #5
Pentaxian




Join Date: Dec 2010
Location: Ontario
Photos: Gallery
Posts: 2,432
If "bright" mode works as I think it should, fireflies (and star trails as mentioned). Totally fireflies. I've combined 200 or more 30 second exposures a few times in post. Being able to have a camera spit out one raw image that combined this giant pile of data would be glorious and I'd eagerly run the battery into the ground shooting 800-900 frames overnight. Having an upper limit that's 'infinite' in practical use would be awesome.

Also think moving water in 'average' mode. If conditions are such that you can only hit, say, 1/10 second exposure, then with 2000 frames you could simulate a 200 second exposure which can blur the heck out of ocean waves. This isn't quite a substitute for a super ND filter as it introduces gaps in-between the exposures, but for something like moving water it can work well (at least at the limited extent my camera can handle).
10-01-2016, 01:34 PM - 1 Like   #6
Veteran Member
MJKoski's Avatar

Join Date: Aug 2016
Posts: 763
I have done some star trails with the Bright mode. It is just about made for it. But watch out it also combines all kinds of noise artifacts together.

I took one multiexposure with 1000 images in average mode but it was ruined by magenta cast unfortunately. But yes, it was very smooth. I hope they fix that magenta bug.

And watch out for battery!! The whole stack will be gone when battery dies. They should make a failsafe function which saves the stack when battery enters critical level.
10-01-2016, 02:08 PM   #7
Site Supporter
micromacro's Avatar

Join Date: Jan 2014
Location: Florida
Posts: 3,033
Original Poster
QuoteOriginally posted by BrianR Quote
If "bright" mode works as I think it should, fireflies (and star trails as mentioned). Totally fireflies.
It's a great idea. Googled fireflies in Florida. Hope to plan the trip to Blue Spring state park in March-April
Brian, can you show your fireflies pictures?
10-01-2016, 02:46 PM - 3 Likes   #8
Pentaxian




Join Date: Dec 2010
Location: Ontario
Photos: Gallery
Posts: 2,432
QuoteOriginally posted by micromacro Quote
It's a great idea. Googled fireflies in Florida. Hope to plan the trip to Blue Spring state park in March-April
Brian, can you show your fireflies pictures?
Sure! My basic plan is f/2.8, iso3200 or so to get the exposure for the firelies, I often end up upping the exposure in post a bit, so bumping that up a smidge wouldn't hurt.. The exposure length is as long as I can get away with while keeping the background dark enough to not compete with the fireflies. Too long and the background ends up brighter than the fireflies as you soak up too much ambient. Stacking in lighten mode maintains the brightness of the background, while letting each firefly show in the final frame.

f/3.5, iso3200, 30 second exposures, 10-17mm fisheye @ 10mm. 226 combined via StarStax Lighten mode. Gaps in star trails from clouds, light on grass from my house (I'm lucky to have fireflies in my 'yard'):



f/2.8, iso3200, 8 to 15 second exposures, DFA100mm macro, 83 exposures combined via StarStax Lighten mode. The sun was setting while the full moon was rising (the moon is lighting the field in the distance), so the varying exposure length kept the ambient balanced and let me use longer exposures as time went on so I had less files to combine.



f/3.5, iso3200, 30 second exposures, 10-17mm fisheye @ 10mm. 16 combined via StarStax Lighten mode. A 'flaw' in doing this in camera is you can't pick and choose which frames to use. Here, a firefly landed on the lens and wandered around. I thought it may bugger things up, but it was kinda cool so I kept it. There's a good deal of randomness with this anyway, so I'm inclined to submit to the chaos and use all the frames I get in any case:



10-01-2016, 04:47 PM   #9
Site Supporter
micromacro's Avatar

Join Date: Jan 2014
Location: Florida
Posts: 3,033
Original Poster
Thank you, Brian. It looks like 16 images is not enough
Now I want to find fireflies
10-05-2016, 10:03 AM   #10
Site Supporter




Join Date: Jul 2011
Posts: 994
Some computer nerd put a limit of 2000 in the program and now people really think about why and go for it... funny world.
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!
dslr, exposure, full frame, full-frame, images, k-1, k-1 multiply exposure, k1, pentax k-1
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
How many 50mm lenses do you own? Favorite? What have you let go? mgvh Pentax SLR Lens Discussion 160 03-26-2017 04:16 AM
How many GB of RAW photos do you have? bertwert General Photography 19 02-09-2016 08:32 PM
How many Takumar lenses do you have ? hjoseph7 Pentax SLR Lens Discussion 27 08-29-2015 02:31 PM
How many Full Frame lenses do you have ? AdrianM Pentax SLR Lens Discussion 77 07-30-2015 05:38 PM
How many 50mm should you have? emilf Pentax SLR Lens Discussion 105 08-21-2009 08:13 AM



All times are GMT -7. The time now is 09:51 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