Sony α7R III: Difference between revisions

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Revision as of 06:41, 10 May 2020 editHarry munday (talk \| contribs)192 edits Undid revision 950365261 by Dondervogel 2 (talk) CRITICAL USER/OPRATION INFORMATION.Tags: Undo nowiki added← Previous edit		Revision as of 07:36, 10 May 2020 edit undoDondervogel 2 (talk \| contribs)Extended confirmed users17,369 edits i still see no sources to support these claimsTag: Undo Next edit →
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	* Improved shutter mechanism to reduce shutter-induced shake		* Improved shutter mechanism to reduce shutter-induced shake
	* Pixel shift multi-shot mode that combines exposures taken on each subpixel of the ], improving overall image quality		* Pixel shift multi-shot mode that combines exposures taken on each subpixel of the ], improving overall image quality

	== Major Issues (Across the α7-series) ==

	* Optical Filter Stack Coatings (White spec/spots on sensor)

	* Internal Weather Sealing (Improved on 4th body re-dezine)
	* Sony's Terrible Warranty and repair services (Cost/Logistics/Turnover)

	Sony is first and foremost an imaging sensor manufacturer (70%* of the CMOS market share) and a consumer electronics maker however for years they have had many issues mainly there <nowiki>''</nowiki>non-pro<nowiki>''</nowiki> warranty and repair services that take 20-30days for both basic and advanced repairs leading many users to simply repair there own devices since from the A7II-present deconstruction and reconstruction is only 30-90min with standard tools thanks to the modular construction and ribbon cable design of the bodies and both 3.5mm ports are even more serviceable on 4th generation.

	Most common repairs of sony mirrorless a7 are the following:

	(Prices subject to geographic region and import fees and sellers priceing as of 2019-2020)

	* 3.5mm Headphone/Microphone Ports (10-20USD per unit)

	* Contact Pins (lens control/power pins) (14-20USD per unit)

	* Optical Filter Stack (UV/IR cut or colour filter) (40-100USD per unit) (not provided by sony)

	* LCD Screen Replacement (20-30USD per unit)
	* Service Mecha Device (Sensor/Shutter/Core Body) (300-800USD model ependent)
	* Mechanical Shutter Unit Replacement (70-100USD model dependent)

	== Recommended cleaning practices and products as of 2020 ==
	Sony has coating issues on their optical filter stacks to the point that only non-methanol or very low methanol cleaning solutions are practical for sensor cleaning due to risk of damaging the coating this section has been added to help users and maintaining of the core operation of said product line due to lack of wide knowledge of said issues.

	Minimal cleaning solution and pressure sould be used at all times in order not to damage the filter stack.

	List of chemicals/tools for such cleaning.

	* Air blowers - (101 Brands here however one with a valve and filtered intake is recommended)
	* SCK-2 Gel Stick (Red Color) - Eyelead (Dry clean solution)
	* Wand Digital kit - Dust-Aid (Economic Swab Solution)
	* Pec Pads - Photographic Solutions (Lenses swabs etc)
	* Smear Away - VisibleDust (For shutter oil fingerprints & other residues)
	* Aero-Clipse - Photographic Solutions (General sensor cleaning fluid)
	* Pure 99% Isoproponal Alcohol - Trusted domestic supplier (cleaning mounts surfaces of sweat dirt and contamination etc)

	==See also==		==See also==

Revision as of 07:36, 10 May 2020

Camera model

Sony α7R III (ILCE-7RM3)
Overview

Maker	Sony
Intro price	1700GBP - 2019
Lens
Lens mount	Sony E-mount
Sensor/medium
Sensor type	BSI-CMOS
Sensor size	35.9 × 24 mm (Full frame type)
Maximum resolution	7952 × 5304 (42.2 megapixels)
Film speed	ISO 100–32000 (expandable to ISO 50–102400) (safe range iso 100-400) (still images); ISO 100–12800 (movies)
Recording medium	SD, SDHC, or SDXC memory card (UHS-II slot 1 & UHS-I slot 2)
Storage media	(Buffer only)
Focusing
Focus	399-point focal-plane phase-detection AF and 425-point contrast-detection AF (Built into sensor)
Flash
Flash	Via multi interface hot shoe
Shutter
Frame rate	24-120p at 50/100 Mbit/s in 1080p 24-30p at 60/100 mbit/s 4k 8Bit 4:0:0
Shutter speeds	1/8000 s to 30 s, BULB
Continuous shooting	HI 8fps Uncompressed RAW or HI+ 10 fps in Compressed RAW (35/71 shot buffer for Full Frame and APS-C mode)
Viewfinder
Viewfinder	EVF (Electronic View Finder)
Viewfinder magnification	0.78
Frame coverage	100%
Image processing
Image processor	BIONZ X
White balance	Yes
General
LCD screen	76 mm (3 in) with 1,440,000 dots
Battery	Sony NP-FZ100
Dimensions	127 by 96 by 74 mm (5.0 by 3.8 by 2.9 in)
Weight	657 g including battery

The Sony α7R III (model ILCE-7RM3) is a full-frame mirrorless interchangeable-lens camera manufactured by Sony. It was announced on 25 October 2017 as the successor to the Sony α7R II launched two years prior. The camera shares many features with the α7R II, including the same 42.2 MP resolution sensor form the α7R II but with much updated hardware/software.

Improvements over α7R II

Several improvements were made compared to the α7R II, including the following:

Improved dynamic range due to lower noise in sensor readout
425 contrast-detect autofocus points, up from 25 in the α7R II
Altered button layout reminiscent of the α9
Improved autofocus performance
Improved battery life due to larger battery
Dual SD card slots, compared to a single slot in the α7R II. However, the slots do not exactly match. One is an SD slot (UHS-I/II compliant), the other is a dual SD (UHS-I compliant) and Sony Memory Stick Duo slot.
Improved shutter mechanism to reduce shutter-induced shake
Pixel shift multi-shot mode that combines exposures taken on each subpixel of the Bayer filter, improving overall image quality