zondag 2 november 2014

Ricoh-Pentax K-s1 short review

">Review Pentax K-s1



A practical review of the new Ricoh-Pentax K-s1 wich will be replacing the K-500 in the Ricoh-Pentax line-up.
I will not go in to the videoquality of this camera because I am not a videographer and don't know enough about this to give an honest opinion. I wil say this: Focusing is stil a manual affair in videomode for this D-SLR !!!
It has a 20mp APS-C sensor without an AA-filter (AA-filter simulation mode). This is probably the same sensor found in the Sony A-58 but Pentax really gets the sharpness out of the sensor. I feel that the solid mirror and AAfilter in the Sony makes the pictures less sharp then they could be.

I think it's still a bit expensive but the picture quality and options are very good for a cameras in this pricerange (with 18-55 € 599,- now with cashback in Holland € 549,-) and a great choice for beginners coming from a compact camera.
Pentax K-500 -18-55 now sells for € 399,- and the K-50-18-55 WR between € 499,- and € 599,-
Sony A-58-18-55 is € 429,- at this moment.

Other specifications are :
iso 100-51200
sensor-shift stabilisation, 
dust removal, 
SAFOX IXi+ with TTL, phase-matching autofocus,
Focus Sensor: 11 point (9 cross type focus points in the center)
Brightness Range: EV-1 to 18 (ISO 100 / at normal temperature)
AF Point Selection: Auto: 5 points, Auto: 11 points, Select, Expanded Area Select, Spot
AF settings : Single AF (AF.S), Continuous AF (AF.C), Auto select AF (AF.A)
Dedicated LED AF assist light
Pentaprism Finder, Approx. 100%, Approx. 0.95x (50mm F1.4 at infinity)

3’’ (7.6cm), TFT color LCD monitor, wide angle viewing, Brightness, Saturation and Colors adjustable, Approx. 921k dots.
Display showing :  Single frame, multi-image display (6,12, 20, 35, 80 segmentation), Display magnification (up to 16x, Quick magnification available), Rotating, Histogram (Y histogram, RGB histogram), Bright area warning, Detailed inf, Copyright Information (Photographyer, Copyright holder), Folder Display, Calendar Filmstrip Display, Slide Show, GPS information (Latitude, Longitude, Altitude, Time (UTC), Direction.
Liveview : Type: TTL method using CMOS image sensor, Focusing Mechanism:
Contrast detection ( Face Detection, Face Detection Assist, Tracking, Multiple AF points, Select, Spot) Focus peaking: ON/OFF

Display:Field of View approx. 100%, Magnified view (2x, 4x, 8x, 10x),
Grid display (4x4 Grid, Golden Section, Scale display), Histogram, Bright area warning.
Shutter:  Electronically controlled vertical-run focal plan shutter, shutterspeeds: Auto: 1/6000 to 30 sec., Manual: 1/6000 to 30 sec. (1/3EV step or 1/2EV step), Bulb.  Sync Speed : 1/180 sec.
Meteringmodes :TTL open aperture, 77 segmented metering, center-weighted and spot metering.
All important picture modes :Auto Picture mode (Standard, Portrait, Landscape, Macro, Moving Object, Night Scene Portrait, Sunset, Blue Sky, Forest), Scene Mode: Portrait, Landscape, Macro, Moving Object, Night Scene Portrait, Sunset, Blue Sky, Forest, Night Scene, Night Scene HDR*, Night Snap, Food, Pet, Kids, Surf & Snow, Backlight Silhouette, Candlelight, Stage Lighting, Museum
EFFECT Mode: Faded Color, Clear Tone, Brilliant Color, Unicolor Bold, Vintage Color, Cross Processing, Warm Fade, Tone Expansion, Bold Monochrome, Infrared FIlter, Vibrant Color Enhance Program, Sensitivity Priority, Shutter Priority, Aperture Priority, Shutter & Aperture Priority, Manual, Bulb
*JPEG only
Comp: ± 5EV (1/2EV step or 1/3EV can be selected)

Flash : Built-in retractable P-TTL auto pop-up flash, guidenr.:approx. 10 (ISO 100/m).
Flashfuction : Auto Flash Discharge, Auto Flash + Red-eye Reduction (Auto Picture, Scene) Flash On, Flash On+ Red-eye Reduction, Slow-speed Sync, Trailing Curtain Sync, Manual Flash Discharge (Full-1/128)

External Flash: P-TTL, Leading Curtain Sync, Trailing Curtain Sync, Contrast-control-sync, High-speed sync, wireless sync (available with 2 dedicated external flash).
Drive Modes
Mode Selection:
Single frame, Continuous (Hi, Lo), Self-timer (12sec., 2sec.), Remote Control (0 sec., 3 sec.), Auto Bracketing (3 frames)
Movie: Remote Control
Continuous shooting :
Max. approx. 5.4 fps, JPEG ( L: ★★★ at Continuous H): up to approx. 20 frames, RAW: up to approx. 5 frames
Max. approx. 3.0 fps, JPEG L: ★★★ at Continuous L): up to approx. 100 frames, RAW: up to approx. 8 frames
*ISO100
Capture Functions
Custom Image: Bright, Natural, Portrait, Landscape, Vibrant, Radiant, Muted, Bleach Bypass, Reversal Film, Monochrome, Cross Processing
Noise Reduction: Slow Shutter Speed NR, High-ISO NR
Dynamic Range Setting: Highlight Correction, Shadow Correction
Lens Correction: Distortion Correction, Lateral Chromatic Aberration Correction, Peripheral Illumin. Correction, Diffraction Correction
Digital Filter: Extract Color, Replace Color, Toy Camera, Retro, High Contrast, Shading, Invert Color, Unicolor Bold, Bold Monochrome
HDR Capture: Auto, HDR1, HDR2, HDR3, Exposure Bracket Value adjustable, Automatic composition correction function
White balance : Type: Method using a combination of the CMOS image sensor and the light source detection sensor
White Balancesettings: AUTO WB, Multi Auto WB, Daylight, Shade, Cloudy, Fluorescent Light (D:Daylight Color, N:Daylight White, W:Cool White, L:Warm White), Tungsten Light, Flash, CTE, Manual WB, Color Temperature Configuration, Copying the white balance setting of a captured image
Fine Adjustment: Adjustable ±7 steps on A-B axis or G-M axis.
Moviesettings : File Format: MPEG-4 AVC/H.264 (MOV)
Recorded Pixels: Full HD(1920x1080, 30p/25p/24p), HD (1280x720, 60p/50p)
Sound: Built-in stereo microphone, Recording Sound Level adjustable.
Recording Time: Up to 25 minutes or 4GB ; automatically stops recording if the internal temperature of the camera becomes high.
Custom Images: Bright, Natural, Portrait, Landscape, Vibrant, Radiant, Muted, Bleach Bypass, Reversal Film, Monochrome, Cross Processing
Cross Processing: Randum, Preset 1-3, Favorite 1-3.
Digital Filter: Extract Color, Replace Color, Toy Camera, Retro, High Contrast, Shading, Invert Color, Unicolor Bold, Bold Monochrome.
Playback View:

Single frame, multi-image display (6,12, 20, 35, 80 segmentation), Display magnification (up to 16x, Quick magnification available), Rotating, Histogram (Y histogram, RGB histogram), Bright area warning, Detailed inf, Copyright Information (Photographyer, Copyright holder), Folder Display, Calendar Filmstrip Display, Slide Show, GPS information (Latitude, Longitude, Altitude, Time (UTC), Direction

Delete: Delete single image, Delete all, Select & delete, Delete folder, Delete instant review image

RAW Development:

RAW file select: Select Single Image, Select Multiple Images, Select a folder

RAW Development Parameter:

File Format (JPEG), Aspect ratio, JPEG recorded pixels, JPEG Quality, Color Space, Distortion Correction, Lateral Chromatic Aberration Correction, Peripheral Illumin. Correction, Diffraction Correction, Color Fringe Correction, White Balance, Custom Image, Digital Filter, Sensitivity, High-ISO NR, Shadow Correction

Edit: Color Moiré Correction, Resize, Cropping (Aspect ratio and Slant adjustment available), MovieEdit (Divide or Delete selected frames), Capturing a JPEG still picture from a movie, Saving RAW data in buffer memory, Eye-Fi Image Transfer.
Card : Compatible with SD, SDHC, and SDXC Memory Card (Conforms to USH-1 standards), Eye-Fi card, FLU card.
RAW (PEF/DNG), JPEG (Exif 2.30), DCF2.0 compliant
Image sizes:
JPEG: L(20M: 5472x3648), M(12M:4224x2816), S(6M:3072x2048), XS(2M:1920x1280)
RAW: L(20M:5472x3648)
Quality level:
RAW: (12bit): PEF, DNG
JPEG: ★★★ (Best), ★★ (Better), ★ (Good)
RAW and JPEG simultaneously recordable
Color space: sRGB, Adobe RGB.
Other functions :

World time : 75 cities, 28 time zones
Custom Functions : 26 items
Mode Memory : 11 items
Button/Dial Customization: 
Green Button (Green Button, One Push File Format, Optical Preview, Digital Preview, Select AF Point)
AF/AE-L Button (AF1, AF2, Cancel AF, AE Lock) Separate customization for movie available
E-Dial Programming (Rotate Right, Rotate Left)
Text Size: Standard, Large
AF Fine Adjustment: ±10 step, Uniform adjustment, Individual adjustment (up to 20 can be saved)
Copyright Information: Names of "Photographer" and "Copyright Holder" are embedded to the image file.
Revision history can be checked using the provided software.
Connection Ports: USB2.0 (micro B, high-speed compatible), HDMI output terminal (Type D)
USB Connection: MSC/PTP
Battery Type: Rechargeable Lithium-ion Battery D-LI109
AC Adapter: AC Adapter Kit K-AC128 (Optional)
Number of recordable images:
(with 50% flash usage): approx. 410 images,
(without flash usage): approx: 480 images
Playback time: Approx. 270 minutes.

So, that's the necessary specification list out of the way.

Like I mentioned before, the camera takes great images with good sharpness en colors. I didn't notice any moiré and the metering is good. I did notice with the normal 77 segment metering and half of the pictured filled with blue sky the subject in the front is (off course quite dark) this is not surprising but with 77 segment I was hoping for a better balance between highlights and shadows.
The camera has an AE-L/AF-L button but it was set on AF-L only so I had to dive in the menu to change this setting to AE-L only to get the exposure I wanted. One can set the camera to "M" and actually aim at the foreground and set exposure of course but usely when i'm walking around I use the "A" setting.

Click on te pictures to see a larger version. Right click on the picture and open in new tab to zoom in.


77 Segmented metering without compensation.



77 segmented metering without compensation, shadows lifted in Lightroom ( a bit noisy but still oké because of this great sensor)


77 segmented metering but set on foreground.(AE-L used)

Also notice the purple blob on the left side of the picture. (forgot to use the suncap) the lens doesn't have a lot of problems with flare by the way, it's also pretty sharp for such a cheap lens but very loud! This is because of the dated "slotted drive screw". You can if you want to use pré-digital autofocus lenses or even old MF lenses on all Pentax camera's because the bajonet has also remained the same.
The AF is very fast and in line with the competition.

This lens and the shutter of the K-S1 are loud, much louder then the K-5 or K-3 for example.
Listen to this:


Compared to the Pentax K-5II

                                                                                 

And the competition Nikon D3300

                                                                               

And with the 18-135


AF in low light is excellent. Test in a low light situation and next time I'll try not to breath so loud.



Liveview AF is also good for a D-SLR. A bit faster than the Nikon D3300

                                                                          


There is also this incredible lightshow. It blinks when it's on timer.



The camera's grip is not for my big hand's but there is a small thumb rest on the back but the AF-L/AE-L button is easely pressed by accident. The modewheel on the back is a good idea. It keeps the camera small. I haven't talked about it so far but just to point it out the camera is very small. Like all Pentax camera's with this one the buttons are well-arranged and there is no need to search for the ISO-WB-Flash and Timer/Drivemode. Altough the camera is small, the buttons are big enough. The controlwheel and modewheel are a little to hard to turn but you won't turn them by accident. Bajonet releasebutton is in the best place for me because you hold the camera and push the button with your right hand and the left hand twists the lens, eezy,peezy.....lemonsqueezy! AF-MF switch on the bottomleft of the bajonet and the flashbutton is on the leftside of the clear and large enough pentaprism.
The camera is not in any way water or dust resistant like the K-50 wich is now a cheaper option!?
I feel the Pentax K-50 will be dicontinued soon. The K-500 is no longer being made by Ricoh.

Click on te pictures to see a larger version. Right click on the picture and open in new tab to zoom in.

 








Vietnamese lens on a Philipine body. HOT STUFF!


Card goes in with the battery. There is no rubber on the batt./card door so no weather or dust sealing.
This is no exception in this pricerange from other brands but the now cheaper K-50 does have weather/dust seeling and it comes with the 18-55WR.


I've said this would be a practical review so back to the picturemaking capabilaties.

The camera takes very sharp pictures with hardly any moiré

Click on te pictures to see a larger version. Right click on the picture and open in new tab to zoom in.




                                  Lightmetering is sometimes thrown in a backlit situation. No different from other camera's

 

The sensor and lens are sharp enough for every situation.







ISO test From RAW files all noise-and sharpness slider in Lightroom set to ZERO


ISO 100


ISO 200


ISO 400


ISO 800


ISO 1600


ISO 3200


ISO 6400



ISO 12800


ISO 25600


ISO 51200


ISO 6400 LR noise reduction


ISO 12800 LR noise reduction

ISO 25600 LR noise reduction


ISO 51200 LR noise reduction

Thank you for reading this review. If you have any comments or suggestions please, let me know