| key specs |
| Camera Type | DSLR Camera | Digital Camera |
| Effective Pixels | 16.05 MP | 7.1 MP |
| Sensor Type | MOS | CCD |
| Display Type | OLED | TFT |
| Display Size | 3 inch | 2.5 inch |
| Battery Type | Lithium ion | Lithium ion |
| Touchscreen | Yes | - |
| general |
| Brand | Panasonic | Canon |
| Model | Lumix DMC GH4A 16.05MP DSLR Camera | PowerShot TX1 7.1MP Digital Camera |
| Model Name | Lumix DMC GH4A | PowerShot TX1 |
| Model Number | DMC GH4A | - |
| Series | Lumix | PowerShot |
| Color | Black | Silver |
| SLR Variant | Body With 12-35Mm Lens | - |
| Type | DSLR Camera | Digital Camera |
| Effective Pixels | 16.05 MP | 7.1 MP |
| Dimensions(WxHxD) | 132.9 x 93.4 x 83.9 mm | 89 x 60 x 29 mm |
| Weight | 560 GM | 220 GM |
| Temperature | 32 to 104 | 0 to 40 |
| Accessory Shoe | Hot Shoe | - |
| Minimum Illumination | - | Available |
| sensor features |
| Sensor Type | MOS | CCD |
| Sensor Size | 17.3 x 13.0 mm | 1/2.5 inch |
| Maximum ISO | 25600 ISO | 800 ISO |
| Maximum FPS | 96 | - |
| Sensor Technology | Live MOS Sensor | - |
| lens features |
| Lens Type | LUMIX G X VARIO | - |
| Lens Mount | Micro Four Thirds mount | - |
| Lens Construction | 14 elements in 9 groups 4 aspherical lenses , 1 UED lens, 1 UHR lens | - |
| Focal Length | f=12-35mm 35mm camera equivalent 24-70mm | 39-390mm 35mm equiv |
| Digital Zoom | 2x | - |
| Optical Zoom | 4x | 10x |
| Aperture Range | F2.8 - F22 | F3.5-5.6 |
| Color Filter | Primary color filter | - |
| Dust Reduction | Yes | - |
| viewfinder features |
| View Finder | Yes | - |
| View Finder Type | OLED Live View Finder 2,359K dots | - |
| Viewfinder Coverage | 100% | - |
| Viewfinder Magnification | Approx. 1.34x / 0.67x 35mm camera equivalent with 50 mm lens at infinity -1.0 m-1 | - |
| Viewpoint Dioptric Adjustment | -4.0 - +4.0 dpt | - |
| Viewfinder Eye Point | 21 mm | - |
| focus features |
| Focus Mode | AFS Single / AFF Flexible / AFC Continuous / MF | - |
| Focus Range | EV -4 - 18 ISO100 equivalent | - |
| Auto Focus | Yes | - |
| Metering Modes | Multiple / Center Weighted / Spot | Evaluative, Center-weighted average, SpotCenter |
| White Balancing | Auto / Daylight / Cloudy / Shade / incandescent / Flash / White Set 1, 2, 3, 4 / Color temperature setting | Auto, Daylight, Cloudy, Tungsten, Fluorescent, Fluorescent H, Custom |
| Focus Points | - | Face Detect AF / 9-point AiAF |
| exposure features |
| Exposure Mode | Program AE, Aperture Priority AE, Shutter Priority AE, Manual | - |
| AE Lock/Exposure Lock | Yes | - |
| Spot Meter | Yes | Yes |
| Exposure Compensation | 1/3 EV step | +/- 2EV in 1/3 EV increments |
| Manual Exposure | Yes | - |
| shutter features |
| Shutter Type | Focal-plane shutter | - |
| Shutter Speed | Still image Bulb Max. 60 minutes, 1/8,000 - 60 | 15 - 1/2500 sec dependent on shooting mode |
| Self-timer | Yes | Yes |
| Continuous Shots | - | Continuous 2.2 fps, no frame limit |
| flash features |
| Built-in Flash | Yes | - |
| External Flash | Yes | - |
| Flash Modes | Auto*, Auto/Red-eye Reduction*, Forced On, Forced On/Red-eye Reduction, Slow Sync., Slow Sync./Red-eye Reduction, Forced Off * For iA, iA+ only. | Auto, Forced on, Forced off, Red-eye reduction, Flash exposure lock, Slow synchro |
| image features |
| Image Format | JPEG DCF, Exif 2.3, RAW, MPO When attaching 3D lens in Micro Four Thirds system standard | JPEG Exif 2.2, DCF, DPOF |
| Aspect Ratio | 43, 32, 169, 11 | - |
| Gross Pixel | 17.20 MP | - |
| Red Eye Reduction | Yes | - |
| Image Stabilizer | Yes | - |
| Image Sizing | [43] 4608x3456L / 3264x2448M / 2336x1752S / 1824x1368 with 3D lens in Micro Four Thirds system standard | 3072 x 2304, 3072 x 1728, 2592 x 1944, 2048 x 1536, 1600 x 1200, 640 x 480 |
| Still Image Size | 4608x3456 | - |
| Live View Shooting | Yes | - |
| Image Processor | - | DIGIC III with iSAPS technology |
| display features |
| Display Type | OLED | TFT |
| Display Size | 3 inch | 2.5 inch |
| Display Resolution | Approx. 1036K dots | 115,000 pixels |
| Touch Screen | Yes | - |
| LCD Display | OLED | Quick Bright LCD, Night Display |
| LCD Display Image Resolution | Approx 1036K dots | 115000 pixels |
| Other Display Features | Brightness 7 levels, Contrast and Saturation 7 levels, Red-Green 11 levels, Blue-Yellow 11 levels | - |
| connectivity features |
| HDMI | Yes | - |
| USB | Yes | Yes |
| Wifi | Yes | - |
| storage and power features |
| Upgradable Memory | Yes | Yes |
| Card Type | SD Memory Card, SDHC Memory Card, SDXC Memory Card Compatible with UHS-I UHS Speed Class 3 standard SDHC / SDXC Memory Cards | SD, SDHC, MMC, MMCplus compatible |
| Power Requirement | 7.2V | - |
| Batteries Included | Yes | Yes |
| Battery Type | Lithium ion | Lithium ion |
| Battery Life | Approx. 530 images with H-HS12035 | - |
| Inbuilt Memory | - | 32 MB |
| audio and video features |
| Microphone | Stereo, Wind-cut OFF / Standard / High | - |
| Speaker | Monaural | - |
| Audio Features | Audio format LPCM / AAC 2ch | - |
| Video Format | MOV Audio format LPCM, MP4 Audio format LPCM / AAC 2ch, AVCHD Audio format Dolby Digital 2ch | AVI Motion JPEG WAVE |
| Frame Rates in Video Modes | 2fps, 15fps, 26fps, 28fps, 30fps, 32fps, 34fps, 45fps, 60fps, 75fps, 90fps, 96fps | 30fps |
| Video Resolution | - | 1280 x 720 |
| modes and functions features |
| HD Support | Yes | - |
| Silent Shooting | Yes | - |
| Shooting Modes | - | Auto, Manual, Super macro, Color accent, Color swap, Stitch assist, Special scene, Movie |
| Scene Modes | - | Portrait, Night Snapshot, Indoor, Foliage, Snow, Beach, Aquarium |
| Macro Mode | - | 3.9 in.-1.6 ft./10-50cm WIDE |