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I have been promoting noise reduction by stacking for years, but while I was able to recommend "Starry Landscape Stacker" for MAC users, there was no easy to use Software for Windows.
This has changed lately, with the release of SEQUATOR, a very easy to use program for stacking untracked nightscapes (for noise reduction) and the best of all: It is freeware!
sites.google.com/site/sequatorglobal/home
So far, I have been using fitswork, a dedicated software for stacking tracked star images. While I learned to use it for untracked images as well, this process is painfully slow. It would therefore be immensely helpful if SEQUATOR was able to perform as beautifully as fitswork, without all the slow manual interventions needed…
Today, I was able to do my first test of SEQUATOR. To see how it performs, I did a side by side comparison with an image I already processed with fitswork.
First I had to find an untracked image sequence. I have been doing mainly tracked shots lately, but I found my Bisti Eggs image which I shot from a fixed tripod:
To get a meaningful comparison, I decided run SEQUATOR with the same preprocessed TIFFs I have used for stacking in fitswork and publish some 100% crops taken from the resulting TIFFs right out of SEQUATOR and fitswork and without further processing. SEQUATOR has several options for stacking, but I found that “Freeze Ground”, “Auto Brightness OFF” and “High Dynamic Range ON” worked best for me.
As you can see, SEQUATOR does an extremely nice job. There are no star trails and no stacking errors and I really like how the foreground and the horizon are razor sharp. Very impressive indeed!
On closer scrutiny, the SEQUATOR result has a tad more saturated colors than my fitswork resut, but selecting “High Dynamic Range ON” avoided burning the stars. The increased saturation leads to slightly increased color fringes around the brighter stars, but this would have happened with the fitswork image as well during post processing and there are techniques to reduce this effect during processing.
SEQUATOR is really easy to use and it took me less than 5 minutes to produce the result, while my normal workflow in fitswork takes about 3 hours to arrive at the same stage.
Conclusion:
I can highly recommend SEQUATOR! If I ever have to process an untracked image sequence again, I use SEQUATOR instead of my fitswork workflow.
On Windows, it is by far the easiest to use and fastest stacking software for nightscapes and produces very good results. Even beginners can immediately produce excellent results. There are no excuses anymore for noisy single shot nightsapes… ;-)
PS:
1. Of course I still highly recommend using a tracking mount to achieve “deeper” sky exposures, by using lower ISO and higher exposure times. This means that you have to shoot the foreground separately with your tracker off and merge the two exposures during post processing. For this techique SEQUATOR might not be the best software out there, but to stay fair, that is not what it was built for…
2. Here is a very nice quick tutorial for SEQUATOR. The only point where I disagree with Mike, is that for better sharpness and no burned highlights, I recommend to use HDR instead of Auto Brightness.
Palmer, Alfred T.,, photographer.
Smoke stacks
1942
1 transparency : color.
Notes:
Title from FSA or OWI agency caption.
Transfer from U.S. Office of War Information, 1944.
Subjects:
World War, 1939-1945
Smokestacks
Industrial facilities
Format: Transparencies--Color
Rights Info: No known restrictions on publication.
Repository: Library of Congress, Prints and Photographs Division, Washington, D.C. 20540 USA, hdl.loc.gov/loc.pnp/pp.print
Part Of: Farm Security Administration - Office of War Information Collection 12002-28 (DLC) 93845501
General information about the FSA/OWI Color Photographs is available at hdl.loc.gov/loc.pnp/pp.fsac
Higher resolution image is available (Persistent URL): hdl.loc.gov/loc.pnp/fsac.1a35072
Call Number: LC-USW36-376
Ben Stack, Sutherland on a winter's late afternoon.
Copyright www.neilbarr.co.uk. Please don't repost, blog or pin without asking first. Thanks
his photo was taken at thursley common on the 18th July 2017.
This is stacked from 3 images using my Olympus omd 1 mark 2 and the Panasonic 100-400 lens
The stacker arrives, but he was slowing, and then he also stopped a short distance later This is on the UP LA Subdivision in Riverside.
One of the cheapest sources of protein worldwide. No exception in Bangladesh...
Meradia Bazar, Dhaka
bring this back around for the Digging in the Archives Tuesday group :)........the URL is here, if you'd like to add a picture or 2 :)
www.flickr.com/groups/2730574@N22/
29/365.........
~~grinning~~
ANSH scavenger20 Stacked
1171/10/30
Inspired to experiment by an article on Petapixel today about the photographer Frank Machalowski got me out at lunch time testing his ideas out.
I kind of like this shot but it is a little too busy. I needed more background separation but I only had a 56mm lens so had to be far away. Next time I'd be a bit more scientific and measured, use a wide angle lens and find a subject with better background separation. I walked an arc about 120 degrees around this tree at a constant distance shooting every 1.5 m or so for a total of 30 images.
This is a blended colour / B+W image. The B+W blending reduces saturation and adds contrast.
In summary you need to look at this guys amazing website:
My new photo in my portfolio. This photo is stacked from 687 photos in zerene. I have stacked 8 parts individually and after I had 8 stacks from zerene I have stacked them manually in PS. All together with postproduction it was more than 12 hours work.
Stay tuned and check my extremelly wide portfolio at My Facebook: www.facebook.com/FlozyaCreative
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The South Stack Lighthouse is built on the summit of a small island off the north-west coast of Holy Island, Anglesey, Wales. It was built in 1809 to warn ships of the dangerous rocks below. The 91-foot tall lighthouse was designed by Daniel Alexander.
South Stack Anglesey,Wales
LVRM 130 enters River Yard in Bethlehem, PA with their intermodal set-out for NS in tow as the forlorn stacks of Bethlehem Steel stand in the background. September 15, 2018.
The stone piles popular in many traditions of Buddhism, it is said that first stupas were simply stacked stones. There are some legends of "saints" hiding teachings and sutra translations in mountain altars to be discovered hundreds of years later, which were just stones stacked up beside paths. For some these also accompany the offerings to the to the Buddhas and Bodhisattvas implying that the strength of the offering is in the intention, not the ornateness of the altar on which we place it.
Due to the work and personal commitments it has been a long time that I logged into Flickr and I think this will continue on for a while and I will stay away for some more time. This is my offering to all my Flickr friends. Please accept my apologies for not visiting your stream or not responding to your comments. Unfortunately my absence will continue for some more time, please bear with me for a while. Have a great time and a wonderful time.
My Facebook page:
Hamilton, Ontario has a large industrial sector and, as a result, shipping is an essential element in keeping that sector operating. To that end, standardized shipping containers are used and, when they are awaiting either loading onto ships for transport to their ultimate destination or awaiting further distribution following off-loading from ships, the containers area stacked neatly, as seen here. The resulting pattern of multi-coloured ‘boxes’ is captured here in an industrial area. - JW
Date Taken: 2024-04-22
Date PP: 2024-04-24
(c) Copyright 2024 JW Vraets
If you are interested in prints or licensing of any of my images, DM me with a brief description of what you may be looking for.
Tech Details:
Taken using a hand-held Nikon D800 fitted with an Tamron 100-400mm 1:4.5-6.3 DI VC USD lense set to 290mm, ISO220 (Auto ISO), Daylight WB, Matrix metering, Shutter Priority Mode, f/6.0 (wide open), 1/800 sec. PP in free Open Source GIMP from Nikon RAW/NEF file: scale image to 9000 px wide, apply distortion correction to remove pincushion distortion, level the image, apply Tone Mapping as well as Dynamic Range Compression at default levels to bring out textures and tame the extreme brightness range, darken overall by setting Exposure Compensation to EV-0.52, boost Contrast as well as Chromaticity in L-A-B mode, adjust colour temperature by setting it to 5500K (slightly warmer), sharpen (edges only), save. PP in free Open Source GIMP: use the Contrast/Brightness tool to both increase contrast and also brighten somewhat, use the Hue-Saturation-Brightness tool to boost overall saturation, sharpen, save, add fine black-and-white frame, add bar and text on bottom, save, scale image to 3000 px wide for posting online, sharpen, save.
A 2 image hand held stack of this jumper , captured against the dark creosote covering my parents shed.
Stacked using Zerene stacker in Pmax
Best Viewed on Black , but better viewed in link below
www.flickr.com/photos/jon1972/8755722964/sizes/k/in/photo...
I tend to use chairs mostly for sitting myself. To each their own. These have dozen wonderful acrobats stacked themselves high into the air on nine chairs. And then the spun them in a circle. It was cool.
Have a tumbling Thursday everyone. But keep it real - only go so far past your current skill set.
Multiple image captures, combined into one focus stack of this Dahlia flower.
DISCLOSURE: I am an artist, not a documentary photographer. When editing my images, I sometimes clone, manipulate, or otherwise change the photo content.
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MRS_20170416_194_LM_clean_stack_web_v1_700h_iwm - ©Matthew Schwartz, All Rights Reserved.
This image is protected by Copyright, and is not available for ANY use without the explicit written permission of the photographer. Thank you for being respectful of the time, money, and hard work I put into creating my fine art images.
Ben Stack and the River Laxford, Sutherland at dawn.
Copyright www.neilbarr.co.uk. Please don't repost, blog or pin without asking first. Thanks