Latest or all posts or last 15, 30, 90 or 180 days.
Upgrade the memory of your 2018 Mac mini up to 64GB
Today’s Deal Zone Items... Handpicked deals...
$160 $140
SAVE $20

$80 $50
SAVE $30

$500 $400
SAVE $100

$1197 $897
SAVE $300

$3498 $3498
SAVE $click

$1837 $1599
SAVE $238

$1349 $1349
SAVE $click

$250 $140
SAVE $110

$999 $949
SAVE $50

$1079 $999
SAVE $80

$400 $240
SAVE $160

$2797 $2497
SAVE $300

$1997 $1597
SAVE $400

$1197 $897
SAVE $300

$3000 $1800
SAVE $1200

$799 $799
SAVE $click

$969 $619
SAVE $350

$2199 $1599
SAVE $600

$1798 $1098
SAVE $700

$1397 $1297
SAVE $100

Sony A1 Pixel Shift: Inexplicably Writes Uncompressed RAW —  Fails to Respect Lossless-Compressed RAW Setting

In pixel shift mode, the A1 insists on writing uncompressed raw files, ignoring user settings to save as lossless-compressed raw.

Lossless-compressed raw is bit-for-bit identical to uncompressed raw. That distinguishes it in a critical respect from Sony 8-bit-per-pixel lossy compressed format (lossless most of the time, but not with ultra high contrast edges).

It cannot be a frame rate thing since the A1 is still puzzlingly slow for pixel shift shooting, at roughly 2 fps, which is 10 times slower than burst shooting lossless-compressed raw (20 fps). So it cannot be a processing power consideration for the compression aspect.

Two bummers remain with Sony pixel shift, no progress made since the A7R IV:

  • Pixel shift is still relatively slow to take all the frames, perhaps 2 fps. That increases the risk of lighting or subject matter changes. Maybe this relates to how fast the sensor can be precisely positioned?
  • Huge waste of space in uncompressed raw format.

Could Sony add lossless-compressed raw for pixel shift via firmware update?

And while we’re on the topic, it seems to me that Sony cameras could have an "auto" setting such that regular compressed raw (always 8 bits per pixel) could be used when the subject matter allows fully lossless capture, and lossless-compressed raw when the subject matter is out of range.

BTW, 16-shot pixel shift is always less sharp than 4-shot and far more prone to quality issues from lighting or subject changes, so I never use it.

CLICK TO VIEW: Sony Mirrorless with Extreme-Performance Lenses

File sizes for Sony A1 pixel shift — uncompressed raw only
(camera configured for lossless-compressed raw)

Best Deals, Updated Weekly
View all handpicked deals...

Logitech G G435 Wireless Gaming Headset (Blue / Pink / Purple)
$80 $50
SAVE $30

diglloyd Inc. | FTC Disclosure | PRIVACY POLICY | Trademarks | Terms of Use
Contact | About Lloyd Chambers | Consulting | Photo Tours
RSS Feeds | Twitter
Copyright © 2022 diglloyd Inc, all rights reserved.