Pentax adds astrophotography features to two DSLR cameras via new firmware updates

Two Pentax K-3 Mark III DSLRs - one in black fihish, and other in chrome finish
(Image credit: Ricoh Imaging)

Ricoh has issued firmware updates to two DSLR cameras, the Pentax K-3 III and Pentax K-3 III Monochrome adding Star AF, Astro photo Image processing, and improved stability.

In a world where mirrorless cameras are now considered the norm, many manufacturers have decided to halt production of DSLRs, but not Pentax. The Pentax K-3 III and Pentax K-3 III Monochrome have filled the gap for new DSLRs, offering impressive features that make you miss mechanical components.

DSLRs remain a favorite for astrophotographers and the new firmware update aims to keep it that way. The update notes are as follows:

Pentax K-3 III (V2.20) / Pentax K-3 III Monochrome (V2.20)

" Added three functions as a limited function of Astrophoto Assist:

• Star AF

• Remote Control Focus Fine Adjustment

• Astro photo Image processing

Improved stability for general performance.

Note: When this update is done, the contents of version 2.13 and earlier will be also updated. When this update is done, you will not be able to restore back to version 2.13 or earlier. "

Pentax K-3 Mark III Monochrome digital camera product images

(Image credit: Ricoh / Pentax)

Accompanying the firmware update is a manual introducing the three new functions, showing what they do and how to utilize them.

Star AF (autofocus) is a focus option that enables the user to select stars in the night sky as the autofocus subject. Traditionally difficult to focus on, Star AF when used in conjunction with a tripod, uses contrast AF to make a more accurate selection. This can take around 10-30 seconds, but in the world of astrophotography, no time at all!

Remote Control Focus Fine Adjustment utilizes the Remote Control Waterproof O-RC1 to refine focus without touching the camera or lens. This is a helpful tool in both astrophotography and macro photography when touching the camera, tripod, or lens can alter the focus position, in these fields of practice the smallest movement can mean big changes.

Thirdly, the Astro Photo Image processing function is a new option that enables the editing of Astro images in the camera enabling users to select and process in the field. The image can then be saved as a new JPG file.

The following six processing options are provided: Shading Correction, Uneven Correction, Background Darkness, Star Brightness, Celestial Body Clarity, and Color Fringe Correction.

The Astrophoto Assist User’s Manual found on the download page goes into a lot more detail on how you can utilize these new features, with step-by-step guides and illustrated diagrams.

Check out our guides to the best DSLR cameras, the best cameras for astrophotography, and the best telescopes.

TOPICS
Kalum Carter
Staff Writer

Kalum is a professional photographer with over a decade of experience, also working as a photo editor and photography writer. Specializing in photography and art books, Kalum has a keen interest in the stories behind the images and often interviews contemporary photographers to gain insights into their practices. With a deep passion for both contemporary and classic photography, Kalum brings this love of the medium to all aspects of his work.

Read more
A pair of Ricoh GR III cameras, against a black background
Two Ricoh compact cameras get performance improvements with updated firmware
Pentax crowdfund for jet black edition of the K-3 Mark III
Could Pentax announce a new DSLR this year?
Pentax K-3 III
Pentax K-3 Mark III officially discontinued – but you can still get one if you're quick
Pentax K-3 III Monochrome
Pentax K-3 III Monochrome review: not a black and white purchase
HD Pentax-DA 70mm F2.4 Limited
The best Pentax cameras in 2025: from APS-C to full frame and medium format
Sony A9 III
Sony rolls out major firmware updates for the A1 II, A1, and A9 III
Latest in DSLR Cameras
Nikon D850 close up
The Nikon D850 drops to its LOWEST-EVER price with bonkers $400 price cut
Pentax K3 Mark III Monochrome held in the hands at the photography & video show
The Pentax K3 III Monochrome is a camera that just makes sense for photographers like me
Nikon D3500
I think the Nikon D3500 is still a great entry-level camera, but only for beginners and students on a tight budget. Here’s why…
Nikon Df
The Nikon Df: this original retro DSLR started a revolution
Nikon
I dusted off my old Nikon D750 DSLR for one last shoot – can it still perform in 2025?
Nikon Peter Lindbergh
Did you know Peter Lindbergh became a fashion photography icon using Nikon DSLR cameras?
Latest in News
Sony Venice Extension System Mini
BREAKING: Sony has just expanded its renowned cinema line with the Venice Extension System Mini
Canon EOS R3 at Lowest-ever price
The Canon R3 has a MASSIVE $1,000 discount in the Amazon Big Spring Sale
Miofive S1 Ultra dash cam on a wooden surface against a white background
Dashcam prices crash by up to $110 in Amazon's spring sale
Kodak Slide N Scan deal
Kodak slashes the cost of its film scanners in Amazon Big Spring Sale
Amazon Spring Sale
These are the best camera deals across the Amazon Big Spring Sale
Akaso Brave 7 LE
Our best budget action cam is now even cheaper in the Amazon spring sale