DPReview.com is closing April 10th - Find out more

NX1 - strange white dots in flares.

Started Aug 25, 2015 | Discussions
pixeljunkieIO New Member • Posts: 4
NX1 - strange white dots in flares.

I was looking through some of my images and am seeing a strange array of white dots when shooting towards the sun. These dots seem to only appear in flares and highlights. Each dot is 2x2 pixels.

The dots appear quite structured, but are not consistent. When comparing two different photos with the dots, they appear in the same position, however some are "switched" on, while others are "switched" off.

When I compress the image horizontally, the dots run at a very slight angle which is quite strange. Additionally, the dots appear in the jpegs and RAW files.

Are there any other NX1 - 45mm shooters who have experienced the same thing?

Example of white dots

Example of white dots in a lens flare

The dot array magnified

Dots are not perfectly horizontal (Image has been been compressed horizontally to illustrate).

Samsung NX 45mm F1.8 Samsung NX1
If you believe there are incorrect tags, please send us this post using our feedback form.
ChuckTa Senior Member • Posts: 1,492
Re: NX1 - strange white dots in flares.

Did u find more images like this. It looks like there is a problem with the sensor.

 ChuckTa's gear list:ChuckTa's gear list
Sony a7 Samsung NX500 Fujifilm X-T20 Panasonic Lumix DC-GX9 Panasonic Lumix DC-GF10 (GF90) +8 more
OP pixeljunkieIO New Member • Posts: 4
Re: NX1 - strange white dots in flares.

Out of a few thousand shots, I only found 8 that exhibited those strange dots.

They appeared in photos that had a strong magenta flare coming from the top of the photo, and the dots were only visible in the flare area, nowhere else.

The most puzzling things is that the dots are not perfectly horizontal. In different images they are between -0.3 to +0.4 degrees off horizontal. I'm thinking it is more of an optical thing rather than an electronic issue.

Ralph McIntosh Regular Member • Posts: 301
Re: NX1 - strange white dots in flares.

Do you use a Filter (for any kind of reason) in front of your lens?

 Ralph McIntosh's gear list:Ralph McIntosh's gear list
Canon EOS 10D Canon EOS 300D Canon EOS Rebel T4i Samsung NX1 Canon EF 50mm F1.8 II +8 more
OP pixeljunkieIO New Member • Posts: 4
Re: NX1 - strange white dots in flares.

I'm not using any filters of any kind, just the 45mm without the hood. I have the 16-50 PZ but have not shot with that lens in those lighting conditions.

Ralph McIntosh Regular Member • Posts: 301
Re: NX1 - strange white dots in flares.

OK, so absolute strange for me. Especially if no filter used.

 Ralph McIntosh's gear list:Ralph McIntosh's gear list
Canon EOS 10D Canon EOS 300D Canon EOS Rebel T4i Samsung NX1 Canon EF 50mm F1.8 II +8 more
Keyboard shortcuts:
FForum MMy threads