digital lines in-camera, should I be concerned?

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jbbevel Forum Member • Posts: 84
digital lines in-camera, should I be concerned?

I've had this happen before, but this weekend it happened several times.   I was shooting at Mono Lake and it was at night (doing long exposures).  It was about 35 degrees out.  I was doing a 4 minute exposure, when I first noticed it.  Then later as the image shows below,  it occurred again with only a 25 sec exposure.

This is with a Sony a7ii and a Rokinon 14mm 2.8 lens.  I generally turn off the camera and then turn it back on.  I've tried it with long exposure noise reduction both on and off and it occurred.  I have also re-formatted my SD card.

What is causing this?  I've searched threads and responses are varied.  I have ordered a new SD card in case my current card is corrupt.

 jbbevel's gear list:jbbevel's gear list
Sony a6000 Sony Alpha a7 II Sony E 10-18mm F4 OSS Rokinon 14mm F2.8 IF ED MC Sony Vario-Tessar T* E 16-70mm F4 ZA OSS +3 more
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