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Sony A7 REALLLLY slow at processing images in certain modes

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I just picked up an A7 and shot it in Aperture priority mode for about 2 days. All of a sudden (i don't know if my finger slipped and touching something?) but images shot in A mode are EXTREMELY slow at processing the images. I hit the shutter then it takes between 3-30 seconds to process the image, which obviously makes the image come out extremely blurry. It almost seems like a long exposure so i initilized and reset the settings and tried it again - seemed OK at close shots. when i tried it again with longer shots, it would do it again. 

 

When i shoot in AUTO or Manual, seems OK. Shutter priority mode is a hit or miss. I really enjoy shooting in Aperture priority - help!

 

Firmware is v 1.20. I have yet to upgrade to 2.00 becuase I have a MAC.

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Guest all8

Slow shutter speed ... increase ISO or Aperture (i.e. decrease f number). If you are new to photography then suggest you read up on Exposure to learn how all these things relate to each other.

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I just picked up an A7 and shot it in Aperture priority mode for about 2 days. All of a sudden (i don't know if my finger slipped and touching something?) but images shot in A mode are EXTREMELY slow at processing the images. I hit the shutter then it takes between 3-30 seconds to process the image, which obviously makes the image come out extremely blurry. It almost seems like a long exposure so i initilized and reset the settings and tried it again - seemed OK at close shots. when i tried it again with longer shots, it would do it again. 

 

When i shoot in AUTO or Manual, seems OK. Shutter priority mode is a hit or miss. I really enjoy shooting in Aperture priority - help!

 

Firmware is v 1.20. I have yet to upgrade to 2.00 becuase I have a MAC.

 

You can also upgrade to v 2.00 if you are running OSX. Go to the support page on the Sony website and install OSX driver installer.

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Hi all,

I was having the same issue. I discovered that by turning off 'long exposure NR' (noise reduction when shutter speed is long) I am not having anymore such long processing time. 

Not sure what kind of compromise I'm making here, but so far it works.

Good luck!

 

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Posted (edited)

There is no compromise for "normal" shutter speeds.

If I remember rightly, Long-exposure NR  takes a black frame, with the same shutter speed, and uses it to compute and reduce the noise in the image. Thus, it always takes at least twice the shutter-speed period. A shutter speed of 15 seconds will take at least 30 seconds to process.

Working backwards, if your camera is taking 30 seconds between shots, the shutter speed must have been around 15 seconds.  Thus your blur.

There is a minimum shutter speed at which your camera will do this process. at higher (normal daylight) shutter speeds, the setting is not relevant. On my a6500 it is 1 second. Googling Long-exposure Noise Reduction and your camera model should take you straight to the manual entry

Edited by Thad E Ginathom

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