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Panasonic S1 vs Pentax 645D

Portability
54
Imaging
75
Features
84
Overall
78
Panasonic Lumix DC-S1 front
 
Pentax 645D front
Portability
50
Imaging
76
Features
52
Overall
66

Panasonic S1 vs Pentax 645D Key Specs

Panasonic S1
(Full Review)
  • 24MP - Full frame Sensor
  • 3.2" Tilting Screen
  • ISO 100 - 51200 (Raise to 204800)
  • Sensor based 5-axis Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Max Shutter
  • 3840 x 2160 video
  • Leica L Mount
  • 1021g - 149 x 110 x 97mm
  • Introduced February 2019
Pentax 645D
(Full Review)
  • 40MP - Medium format Sensor
  • 3" Fixed Display
  • ISO 200 - 1600
  • No Anti-Alias Filter
  • No Video
  • Pentax 645AF2 Mount
  • 1480g - 156 x 117 x 119mm
  • Introduced March 2010
  • Replacement is Pentax 645Z
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Panasonic S1 vs Pentax 645D Overview

On this page, we are evaluating the Panasonic S1 versus Pentax 645D, former is a Pro Mirrorless while the other is a Pro DSLR by manufacturers Panasonic and Pentax. There exists a large gap among the resolutions of the S1 (24MP) and 645D (40MP) and the S1 (Full frame) and 645D (Medium format) have totally different sensor size.

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The S1 was released 9 years after the 645D which is a fairly serious difference as far as camera technology is concerned. Both of the cameras have different body design with the Panasonic S1 being a SLR-style mirrorless camera and the Pentax 645D being a Large SLR camera.

Before we go into a more detailed comparison, here is a concise view of how the S1 matches up versus the 645D in terms of portability, imaging, features and an overall mark.

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Reasons to pick Panasonic S1 over the Pentax 645D

 S1 645D 
IntroducedFebruary 2019March 2010Newer by 109 months
Display typeTiltingFixed Tilting display
Display dimensions3.2"3"Larger display (+0.2")
Display resolution2100k921kCrisper display (+1179k dot)
Touch friendly display Easily navigate

Reasons to pick Pentax 645D over the Panasonic S1

 645D S1 

Common features in the Panasonic S1 and Pentax 645D

 S1 645D 
Focus manually More accurate focusing
Selfie screen Lacking selfie screen

Panasonic S1 vs Pentax 645D Physical Comparison

For anyone who is intending to travel with your camera, you will want to take into account its weight and dimensions. The Panasonic S1 has external measurements of 149mm x 110mm x 97mm (5.9" x 4.3" x 3.8") having a weight of 1021 grams (2.25 lbs) whilst the Pentax 645D has dimensions of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") and a weight of 1480 grams (3.26 lbs).

Analyze the Panasonic S1 versus Pentax 645D in our completely new Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Always remember, the weight of an ILC will vary based on the lens you have attached at that time. Following is a front view dimension comparison of the S1 versus the 645D.

Panasonic S1 vs Pentax 645D size comparison

Factoring in dimensions and weight, the portability rating of the S1 and 645D is 54 and 50 respectively.

Panasonic S1 vs Pentax 645D top view buttons comparison

Panasonic S1 vs Pentax 645D Sensor Comparison

Quite often, it can be tough to see the gap in sensor dimensions only by viewing specs. The image underneath will provide you a far better sense of the sensor sizing in the S1 and 645D.

As you can plainly see, the 2 cameras provide different resolutions and different sensor dimensions. The S1 due to its smaller sensor will make getting shallower depth of field trickier and the Pentax 645D will render greater detail as a result of its extra 16MP. Greater resolution will help you crop photos more aggressively. The younger S1 is going to have a benefit in sensor innovation.

Panasonic S1 vs Pentax 645D sensor size comparison

Panasonic S1 vs Pentax 645D Screen and ViewFinder

Panasonic S1 vs Pentax 645D Screen and Viewfinder comparison
Photography Glossary

Photography Type Scores

Portrait Comparison

Panasonic S1 Portrait photography info
Pentax 645D Portrait photography info
85
focusing manually
flash sync speed is above average (1/320s)
decent sensor resolution (24 megapixels)
large sensor size (Full frame)
supports face detection focus
supports RAW formats
77
focusing manually
megapixel count great (40MP)
great sensor size (Medium format)
delivers RAW files
does not have liveview
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Street Comparison

Panasonic S1 Street photography factors
Pentax 645D Street photography factors
70
has a tilting screen
built in image stabilization (Sensor based 5-axis)
large sensor size (Full frame)
supports RAW formats
provides touch focus
environment sealing
good high ISO (51,200)
more heavy than competitors in class (1,021g)
58
great sensor size (Medium format)
delivers RAW files
weather sealing
no articulating screen
no image stabilization
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Sports Comparison

Panasonic S1 Sports photography info
Pentax 645D Sports photography info
76
high shutter speed (1/8,000s)
silent shutter (1/8,000s)
built in image stabilization (Sensor based 5-axis)
decent sensor resolution (24 megapixels)
large sensor size (Full frame)
supports tracking autofocus
environment sealing
bad battery pack (380 CIPA)
has no phase detect auto focus
63
megapixel count great (40 megapixels)
great sensor size (Medium format)
weather sealing
supports phase detect auto focus
does not have liveview
max frames per second low (1.0 frames per second)
no image stabilization
bad battery life (800 per charge)
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Travel Comparison

Panasonic S1 Travel photography factors
Pentax 645D Travel photography factors
59
environment sealing
supports bluetooth
provides touch focus
decent sensor resolution (24MP)
bad battery pack (380 shots)
more heavy than competitors in class (1,021 grams)
does not feature selfie friendly screen
55
weather sealing
megapixel count great (40 megapixels)
bad battery life (800 per charge)
does not have a selfie friendly screen
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Landscape Comparison

Panasonic S1 Landscape photography information
Pentax 645D Landscape photography information
81
focusing manually
change lenses (Leica L mount)
decent sized screen (3.2 inch)
built in image stabilization (Sensor based 5-axis)
decent sensor resolution (24 megapixels)
large sensor size (Full frame)
does not have anti aliasing filter
good high ISO (51,200)
supports RAW formats
environment sealing
has dual storage slots
bad battery pack (380 shots)
72
focusing manually
swap lenses (Pentax 645AF2 mount)
screen size is decent (3 inch)
megapixel count great (40 megapixels)
great sensor size (Medium format)
doesnt have low pass filter
delivers RAW files
weather sealing
two card slots
does not have liveview
no image stabilization
bad battery life (800 CIPA)
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Vlogging Comparison

Vlogging with Panasonic S1
Vlogging with Pentax 645D
32
touchscreen functionality
built in image stabilization (Sensor based 5-axis)
supports face detection focus
video resolution high (3840 x 2160 pixels)
does have external microphone jack
does not feature selfie friendly screen
more heavy than competitors in class (1,021 grams)
9
no video recording
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Panasonic S1 vs Pentax 645D Specifications

Detailed spec comparison table for Panasonic S1 and Pentax 645D
 Panasonic Lumix DC-S1Pentax 645D
General Information
Company Panasonic Pentax
Model Panasonic Lumix DC-S1 Pentax 645D
Class Pro Mirrorless Pro DSLR
Introduced 2019-02-01 2010-03-10
Physical type SLR-style mirrorless Large SLR
Sensor Information
Chip Venus Engine Prime II
Sensor type CMOS CCD
Sensor size Full frame Medium format
Sensor measurements 35.6 x 23.8mm 44 x 33mm
Sensor area 847.3mm² 1,452.0mm²
Sensor resolution 24MP 40MP
Anti aliasing filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 4:3
Peak resolution 6000 x 4000 7264 x 5440
Highest native ISO 51200 1600
Highest enhanced ISO 204800 -
Minimum native ISO 100 200
RAW files
Minimum enhanced ISO 50 100
Autofocusing
Manual focus
Touch focus
AF continuous
AF single
Tracking AF
Selective AF
AF center weighted
Multi area AF
AF live view
Face detection focusing
Contract detection focusing
Phase detection focusing
Number of focus points 225 11
Lens
Lens mounting type Leica L Pentax 645AF2
Amount of lenses 30 6
Crop factor 1 0.8
Screen
Screen type Tilting Fixed Type
Screen diagonal 3.2" 3"
Screen resolution 2,100 thousand dots 921 thousand dots
Selfie friendly
Liveview
Touch capability
Screen tech - TFT Color LCD with wide-viewing angle and with AR coating
Viewfinder Information
Viewfinder Electronic Optical (pentaprism)
Viewfinder resolution 5,760 thousand dots -
Viewfinder coverage 100% 98%
Viewfinder magnification 0.78x 0.85x
Features
Minimum shutter speed 60s 30s
Fastest shutter speed 1/8000s 1/4000s
Fastest silent shutter speed 1/8000s -
Continuous shutter rate 9.0 frames per sec 1.0 frames per sec
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Change WB
Image stabilization
Built-in flash
Flash range no built-in flash no built-in flash
Flash modes Auto, Auto/Red-eye Reduction, Forced On, Forced On/Red-eye Reduction, Slow Sync, Slow Sync w/Red-eye Reduction, Forced Off Auto, On, Off, Red-eye, Slow Sync, Rear Curtain
External flash
Auto exposure bracketing
WB bracketing
Fastest flash synchronize 1/320s 1/125s
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Supported video resolutions 3840 x 2160 @ 60p / 150 Mbps, MP4, H.264, Linear PCM -
Highest video resolution 3840x2160 None
Video data format MPEG-4, H.264, H.265 -
Microphone port
Headphone port
Connectivity
Wireless Built-In None
Bluetooth
NFC
HDMI
USB Yes (can be charged with high-power laptop/tablet chargers or portable power banks) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environment sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 1021 gr (2.25 pounds) 1480 gr (3.26 pounds)
Physical dimensions 149 x 110 x 97mm (5.9" x 4.3" x 3.8") 156 x 117 x 119mm (6.1" x 4.6" x 4.7")
DXO scores
DXO Overall score 95 82
DXO Color Depth score 25.2 24.6
DXO Dynamic range score 14.5 12.6
DXO Low light score 3333 1262
Other
Battery life 380 pictures 800 pictures
Battery type Battery Pack Battery Pack
Battery model - D-LI90
Self timer Yes Yes (2 or 10 sec)
Time lapse shooting
Storage type - SD/SDHC
Card slots Two Two
Launch pricing $2,498 $4,000