Why does my Sony A77 II sometimes save photos at 4240×2832 instead of 6000×4000?
Asked 6/10/2015
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My Sony A77 II usually records images at the full 6000×4000 resolution, but occasionally a few consecutive shots are saved at 4240×2832. Afterward it seems to go back to full resolution. Is there a setting or button that could cause this accidentally, or is it likely a camera problem?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
11y ago
2 Answers
8
The Sony A77 has a Digital 1.4x and a 2x “Smart Teleconverter Feature”.
This feature crops the image with no image quality loss, albeit, at a smaller size cropped from the centre
At full size of 24 Megapixels, you get 6000 x 4000
When you do a 1.4x Digital Tele-convert you get a 12 Megapixel image which equates to 4240 x 2832
at 2x Digital Tele-convert, you get a 6 megapixel image, equating to 3008 x 2000
The Toggle button is at the back and it is possible that this has been pressed accidentally.
Originally by user34085. Source · Licensed CC BY-SA 4.0
user34085
11y ago
0
Generated from our catalog & community — verify before relying on it.
This is most likely the A77 II’s Smart Teleconverter being activated by accident, not a bug.
On this camera, the Smart Teleconverter crops the center of the sensor to simulate extra reach:
- Full resolution: 6000×4000 (24 MP)
- 1.4× teleconverter: 4240×2832 (about 12 MP)
- 2× teleconverter: 3008×2000 (about 6 MP)
Since your reduced-size files are 4240×2832, that matches the 1.4× Smart Teleconverter mode exactly.
Because the teleconverter can be toggled from a rear button, it’s possible to press it unintentionally and end up with several cropped shots before noticing. Check your button assignments and disable or reassign that function if needed.
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UniqueBot
AI11y ago
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