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Pentax K-S1 : Specifications and Opinions

The Pentax K-S1 is a reflex camera with APS-C (1.5x) sensor and 20 megapixels manufactured from 2014 to 2017 (discontinued). The range of sensitivities, including ISO extension, is 100 - 51200 ISO and it has a continuous shooting (burst mode) of 5.4 FPS. The average price was 300 €;

21 users have given it an average vote of 9.0 out of 10

Sensor
Format	APS-C, 23.5 x 15.7 mm (image ratio 3:2, crop factor 1.5x in comparison with FF)
Resolution	20 megapixel (pixel pitch 4.30 μm)
ISO sensitivities	100 - 51200
File formats	JPEG, RAW
Esposure
Shutter speeds	30" - 1/6000
Exp. compensation	+/- 5 stops at 1/3 steps
Exp. modes	M, S, A, P, Scena
Metering modes	Multi-Area, Semi-Spot, Spot
Features
Mount	Pentax K (click here to view all compatible lenses)
Stabilization	Yes
Autofocus (AF areas)	11
Continuos shooting	5.4 FPS
Pre-Burst	No
Live View	Yes
MLU/SS	No
Video mode	1920x1080p @ 30 FPS
WiFi	Yes
GPS	No
USB	micro-USB (USB 2.0)
USB Charging	No
Computing Features
ND Long Exposure	No
Pixel Shift	No
Focus Stacking	No
Startrail/Composite mode	No
Astrotracer	Yes (but it requires external GPS, not included with camera)
Camera body and built
Touchscreen	No
LCD	3.0", 640 x 480 pixels, fixed
Viewfinder	Optical, coverage 100%, 0.95x
Flash	Yes, guide number 10 meters
Storage	SD, SDHC, SDXC
Storage, Slot 2	not available
Battery	Pentax D-LI109, 7.78 Wh
Weather sealing	No
Weight	558 g
Dimensions	121 x 93 x 70 mm
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Reviews

What do you think about this camera?

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The following opinions have been automatically translated with Google Translate.

Maurizio85

sent on July 22, 2025

Pros: Small and light, excellent viewfinder, responsive and very pleasant to use.

Cons: A bit plasticky but of good quality.

Opinion: Every time I use it I think it has everything you need to take great photos in any normal situation (maybe not at the North Pole or in an African desert). I find that used in the TAV mode, after setting the ISO max to 3200 it gives the maximum pleasure in use, giving great quality files. Even on fairly long sessions it never causes me fatigue with the lenses of the Pentax Kit mounted (SMC 18- 55mm F3.5-5.6 and SMC 50-200 F4-5.6). It restores the pleasure of photographing without the need for gymnastic muscles. I bought it 10 years ago with 4 years of official Fowa warranty on offer at 315 euros from Mediaworld which sold them at half price because it was discontinuing the Pentax brand. It was a small bargain that I have never regretted, not even when the automatic aperture control failed after a thousand shots and only worked in manual. I sent it for repair to the official assistance where it was returned to me after a few weeks in perfect working order and with the updated firmware. Too bad that Pentax now seems to be on its way to the sunset but after all everything changes and the present is of new technologies and therefore of Mirror less. But as an old amateur photographer I continue to prefer the reflex viewfinder even with its brightness limits in low light conditions. Best wishes for a lot of fun to all fans.

AcmPhoto

sent on November 26, 2018

Pros: Maneuverable, it is well in hand, good chromatic rendition, optimum battery life, even 1000 shots without live view, good high ISO resistance, stabilised on the sensor, excellent viewfinder, illuminated program ring. The LEDs are original but I look a little more in a reflex =).

Cons: Autofocus not always accurate, unreliable at least in my case, disastrous assistance and no spare parts, aesthetically questionable

Opinion: Purchased in blue version in 2015 as first SLR with Pentax SMC lenses from 18-55mm f/3.5-5.6 to WR and SMC from 55-300mm f/4.0-5.8 and both used but perfect, always used with utmost care, never taken bumps or anything, allowed me to learn to photograph " Seriously "after countless compact and bridge of various brands over the years. L I used mainly for photos in racetrack, rally, photo in disco combined with a flash neewer NW620 manual. With the passing of the shots I started to use it only in manual mode, often bringing home good shots, detailed and enjoyable. I don't want to get ready on the video department, just the fact that it doesn't have the continuous focus is really a serious lack in my opinion. Unfortunately after only 10800 photos and only two months out of warranty left me on foot, motherboard burnt the response with 235 euros repair.. Sold as spare parts. Embittered is to say the least given the cost sustained and the sacrifices made to buy it, I have never even happened with small machines really modest. I sold all the kit and bought in offer a small Sony HX60

Puffulvio

sent on September 23, 2016

Pros: Handy, very small but it is well in hand, excellent color rendering, good resistance to high ISO, stabilized on the sensor, simple menu and fast to set, beautiful viewfinder mode dial illuminated programs. The LEDs do not bother me.

Cons: Non-tropical conditions, lacks the dual ring to speed and aperture.

Opinion: I have almost two years, KS1, it was my first SLR and I'm almost fully satisfied. Missing only tropicalization and the double ring to speed and aperture, in fact I added a K50 after six months. But I continue to use it with satisfaction, for the excellent sensor that returns highly detailed photos, saturated colors and is well stabilized (except that the stabilization on the sensor produces "weird" effects in video mode when for example you walk with the camera in hand, but I do not do video, so ... still happens that the subject remains in focus and "the world turns"). I find that all parts are really necessary, absolutely nothing, for amateur use, but also quite thorough. And it's tiny, smaller than a bridge. Burst more than decent, autofocus on camera engine, exceptionally low price. Also good performance by raising the ISO. Perfect for a night use the mode dial illuminated programs. Missing the upper display, but I do not feel the need. Splendid the viewfinder. Tornandor the video function, I think stabilized optics solve the problem ...

Zimar86

sent on August 03, 2016

Pros: Price (now new is often found below 300), ease of use, low noise for high ISO, image stabilization

Cons: the advantage of being lightweight, it becomes an obstacle in the presence of heavier targets, the slightly protruding grip necessitates some extra effort più.Io I have a white version with blue inserts, colored inserts are permeable, easily smudged. A rear swiveling display would be the maximum, and would also be in line with the "sportiness" of the line

Opinion: Great value, excellent performance in high iso, vivi.Ormai color is relatively low prices (must not have been a success), and the same price does not have much to envy to the entry level of the lighter rinomati.rnMolto brands, fresh lines (perhaps too much) with Christmas tree effect, circumvent the led.rnrnE off 'a little uncomfortable for large hands, or heavy objectives, this is due also to a slightly protruding handle. With a small lens, a camera does not seem quietly SLR

user94858

sent on June 25, 2016

Pros: Easy to use and very intuitive menus, commands practical and handy, buttons for all functions, natural colors, good sealing of the ISO (up to 3200), very fast times (1/6000), stabilized body, videos quality, pentaprism (qualitatively superior to pentamirror), double button to focus, manual focus possible via green hexagon inside the viewfinder and additional sound, the vastness of available optics (from analogue to digital semi-automatic ) readily available at a good price

Cons: Like all entry level has only one dial to diaphragms and time but you do soon get used, the shutter is very noisy (I like is the machine's robustness symbol)

Opinion: I used the K-S1 for some video work and some pictures; intrigued by its performance I asked to borrow a colleague and I tried for a week to see how he would react under pressure. A car certainly exceptional for its price, far superior to other entry level such as Canon and Nikon; taking it in hand you can see at once that all the controls are on the right and then to hand, a point not just with regard to convenience and speed of scatto.rnLa focus can be activated either from the shutter release button is the button AF AE-L, in the manual is accurate and convenient, and as soon as you reach the desired fire the machine shows us a green hexagon in the viewfinder and you can hear a "beep" (which you can turn off the menu if you do not want to make noise ) .rnI colors are natural, and the estate of the ISO is unusually good for an entry level, you can go up to 3200 ISO and still achieve good results. The video industry is very good andyou can make great videos. The available targets range from semi-automatic analog (available at a few Euros on the internet or in flea stalls) to the current digitali.rnUna machine that I would recommend to anyone who wants to spend little and have so much.

There are 1 more reviews. Show all »

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Reviews » Cameras » Cameras Pentax » Pentax K-S1

Pentax K-S1 : Specifications and Opinions

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Reviews

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Photos taken with Pentax K-S1