Strange flaring Sigma FP with Laowa 10-18mm

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sootyvrs Contributing Member • Posts: 629
Strange flaring Sigma FP with Laowa 10-18mm

Was out on a hike yesterday in not ideal lighting mid day sun and took some images with the sun in it to see how it handles flare at got some odd artifacts.

Curious to know if it's lens flare or perhaps sensor reflections of some sort?

Probably not many using this camera lens combo but wondered if anyone else has seen this  before?

This is was shot at 10mm f/8 shot 14 bit DNG converted Lightroom

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agfa100 Contributing Member • Posts: 602
Re: Strange flaring Sigma FP with Laowa 10-18mm
1

I tend to think this is due to the lens, I have one in a sony mt. and I know that I need to be very careful as it will flare easily due to it being so wide. It's fun to use but you must pay attention.

Enjoy

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sunnycal
sunnycal Contributing Member • Posts: 600
Re: Strange flaring Sigma FP with Laowa 10-18mm
1

agfa100 wrote:

I tend to think this is due to the lens, I have one in a sony mt. and I know that I need to be very careful as it will flare easily due to it being so wide. It's fun to use but you must pay attention.

Enjoy

Right. This has nothing to do with the camera and quite normal for this kind of lens.

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OP sootyvrs Contributing Member • Posts: 629
Re: Strange flaring Sigma FP with Laowa 10-18mm

Thanks both

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Johan Borg Veteran Member • Posts: 3,259
Re: Strange flaring Sigma FP with Laowa 10-18mm

sunnycal wrote:

agfa100 wrote:

I tend to think this is due to the lens, I have one in a sony mt. and I know that I need to be very careful as it will flare easily due to it being so wide. It's fun to use but you must pay attention.

Enjoy

Right. This has nothing to do with the camera and quite normal for this kind of lens.

Probably, but earlier Sigma cameras, particularly the fixed-lens ones like DP2 Merrill, were known to produce precisely this kind of red dot pattern if shooting into the sun like here. I assumed it to be a quirk of the Foveon sensor, but it can clearly happen without one.

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agfa100 Contributing Member • Posts: 602
Re: Strange flaring Sigma FP with Laowa 10-18mm

When I started with digital I used a SD-9 and 14 and one of the lenses I had, still have is a EX 15mm not a DG the DG was added after they added coatings on the rear of some of the lenses elements due to excessive flare issues which I have seen with this lens and my older Sigma cameras. This does not look the same plus Sigma does not make this Bayer sensor. I could be very wrong but it's my 0.02 cents worth.

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Johan Borg Veteran Member • Posts: 3,259
Re: Strange flaring Sigma FP with Laowa 10-18mm

agfa100 wrote:

When I started with digital I used a SD-9 and 14 and one of the lenses I had, still have is a EX 15mm not a DG the DG was added after they added coatings on the rear of some of the lenses elements due to excessive flare issues which I have seen with this lens and my older Sigma cameras. This does not look the same plus Sigma does not make this Bayer sensor. I could be very wrong but it's my 0.02 cents worth.

I just thought this (which I've seen on an old DP1s myself) looked rather similar:

https://www.dpreview.com/forums/post/62084194

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Kharan
Kharan Senior Member • Posts: 2,202
Re: Strange flaring Sigma FP with Laowa 10-18mm
1

Those are sensor reflections, and they happen with most mirrorless cameras. Newer Sonys have a better AR coating that reduce the effect, as do newer Olympus and Fujifilm cameras. Canon, Nikon, Sigma and Panasonic all still suffer from them, however.

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