Odd lens flare with the 10-18 zoom

Started Apr 7, 2014 | Discussions
Shop cameras & lenses ▾
abdoozy
abdoozy Regular Member • Posts: 260
Odd lens flare with the 10-18 zoom
1

This was shot at 10mm. The sunburst looked cool in the viewfinder. On the monitor, not so much. Was this a function of the lens being at f/22, the fact that the lens had a filter onboard (albeit a good quality Marumi lens protector), or should I just expect this kind of odd flare artifacts when shooting a UWA directly into the sun?

Some of those flare dots are downright bizarre.. they look like donuts. Or condoms

-- hide signature --

yr. obt. svt.,
abdoozy
WSSA Member#160

 abdoozy's gear list:abdoozy's gear list
Sony a6000 Sony Alpha 7 II Sony 16-35mm F2.8 ZA SSM Carl Zeiss Vario-Sonnar T* Sony Carl Zeiss Sonnar T* E 24mm F1.8 ZA Sony E 10-18mm F4 OSS +11 more
DtEW Senior Member • Posts: 2,167
Re: Odd lens flare with the 10-18 zoom
1

Why, for crying baby Jesus, are you shooting APS-C at f/22?

 DtEW's gear list:DtEW's gear list
Canon EOS 6D Sony a6000 Samyang 14mm F2.8 IF ED MC Aspherical Samyang 24mm f/1.4 ED AS UMC Sony E 50mm F1.8 OSS +17 more
abdoozy
abdoozy OP Regular Member • Posts: 260
Re: Odd lens flare with the 10-18 zoom

DtEW wrote:

Why, for crying baby Jesus, are you shooting APS-C at f/22?

I was testing DOF when shooting straight up with the sun in the frame at various apertures.

Did I break some photographic law? Should my wrists be slapped or something? Because it's not like I make a habit out of it...

-- hide signature --

yr. obt. svt.,
abdoozy
WSSA Member#160

 abdoozy's gear list:abdoozy's gear list
Sony a6000 Sony Alpha 7 II Sony 16-35mm F2.8 ZA SSM Carl Zeiss Vario-Sonnar T* Sony Carl Zeiss Sonnar T* E 24mm F1.8 ZA Sony E 10-18mm F4 OSS +11 more
Lightshow
Lightshow Veteran Member • Posts: 4,496
Re: Odd lens flare with the 10-18 zoom

Shooting into the sun can illuminate dust and cause weird effects, so clean your lens and use a rocket blower on that sensor and re-shoot this shot.

 Lightshow's gear list:Lightshow's gear list
Sony Alpha NEX-7 Sony Alpha 7R Leica APO-Summicron-M 90mm f/2 ASPH Voigtlander 15mm F4.5 Super Wide Heliar +1 more
Tuloom Senior Member • Posts: 1,805
Re: Odd lens flare with the 10-18 zoom

Nothing unusual.

Euell Senior Member • Posts: 1,815
Re: Odd lens flare with the 10-18 zoom

Never seen that shooting a sun star, but then never shot a sun star with my NEX 6. I'm not sure those dots are dust though.  Could be a dirty filter or someone suggested a dirty sensor, but maybe just a function of the lens and filter.

 Euell's gear list:Euell's gear list
Sony RX100 Canon EOS 7D Sony Alpha NEX-5 Sony Alpha NEX-6 Sony a6000 +15 more
sybersitizen Veteran Member • Posts: 5,860
Re: Odd lens flare with the 10-18 zoom

abdoozy wrote:

... Was this a function of the lens being at f/22, the fact that the lens had a filter onboard (albeit a good quality Marumi lens protector), or should I just expect this kind of odd flare artifacts when shooting a UWA directly into the sun?

That patterned rainbow spot effect has been seen extensively on the A7/R under the same shooting conditions, as you probably have read. In addition to that you have some ordinary flare spots and some dust in/on the lens.

abdoozy
abdoozy OP Regular Member • Posts: 260
Re: Odd lens flare with the 10-18 zoom

Lightshow wrote:

Shooting into the sun can illuminate dust and cause weird effects, so clean your lens and use a rocket blower on that sensor and re-shoot this shot.

Good point. Everything looked fine when I took the camera outside, but the pollen is very heavy today and it's possible that helped create the artifacts.

if I get a chance with similar conditions I'll try it again, only with a freshly delinted lens and no filter.

-- hide signature --

yr. obt. svt.,
abdoozy
WSSA Member#160

 abdoozy's gear list:abdoozy's gear list
Sony a6000 Sony Alpha 7 II Sony 16-35mm F2.8 ZA SSM Carl Zeiss Vario-Sonnar T* Sony Carl Zeiss Sonnar T* E 24mm F1.8 ZA Sony E 10-18mm F4 OSS +11 more
uhligfd Senior Member • Posts: 1,914
Re: Odd lens flare with the 10-18 zoom

abdoozy wrote:

This was shot at 10mm. The sunburst looked cool in the viewfinder. On the monitor, not so much. Was this a function of the lens being at f/22, the fact that the lens had a filter onboard (albeit a good quality Marumi lens protector), or should I just expect this kind of odd flare artifacts when shooting a UWA directly into the sun?

Some of those flare dots are downright bizarre.. they look like donuts. Or condoms

-- hide signature --

yr. obt. svt.,
abdoozy
WSSA Member#160

To learn more about such flare pattern you should invest the $ 50 it takes to purchase a pinhole cover for the NEX. Then you would see wild flares in any color if you shoot into the sun. These are at f/150 or smaller and then this effect becomes even more prevalent.

Otherwise: Go and learn NOT to use f/22 into the sun; and do clean your lenses and sensor every once in a while.

But I am serious about those pinhole covers, the cheapest new lens you can buy,so  try one and learn.

steve vida Regular Member • Posts: 393
Re: Odd lens flare with the 10-18 zoom

To be fair, I think you need to remove the filter & try again.It may not make much difference but its not serving any purpose in improving the image.

 steve vida's gear list:steve vida's gear list
Sony Alpha NEX-5N Sony Alpha 7 Sony E 18-55mm F3.5-5.6 OSS Sony E 16mm F2.8 Pancake Sony E 10-18mm F4 OSS +6 more
abdoozy
abdoozy OP Regular Member • Posts: 260
Re: Odd lens flare with the 10-18 zoom

uhligfd wrote:

abdoozy wrote:

This was shot at 10mm. The sunburst looked cool in the viewfinder. On the monitor, not so much. Was this a function of the lens being at f/22, the fact that the lens had a filter onboard (albeit a good quality Marumi lens protector), or should I just expect this kind of odd flare artifacts when shooting a UWA directly into the sun?

Some of those flare dots are downright bizarre.. they look like donuts. Or condoms

-- hide signature --

yr. obt. svt.,
abdoozy
WSSA Member#160

To learn more about such flare pattern you should invest the $ 50 it takes to purchase a pinhole cover for the NEX. Then you would see wild flares in any color if you shoot into the sun. These are at f/150 or smaller and then this effect becomes even more prevalent.

Otherwise: Go and learn NOT to use f/22 into the sun; and do clean your lenses and sensor every once in a while.

But I am serious about those pinhole covers, the cheapest new lens you can buy,so try one and learn.

After 40+ years of photography I know enough not to shoot f/22 into the sun (or anywhere else) for any reason except flat experimentation, which is all I was doing here. I appreciate comments regarding the spots and the odd rainbow effect, which I'd heard about with the A7 but not with the NEX6.

The sensor is cleaned regularly. The spot problem is likely as others have mentioned, with minuscule particles on the lens protector.

-- hide signature --

yr. obt. svt.,
abdoozy
WSSA Member#160

 abdoozy's gear list:abdoozy's gear list
Sony a6000 Sony Alpha 7 II Sony 16-35mm F2.8 ZA SSM Carl Zeiss Vario-Sonnar T* Sony Carl Zeiss Sonnar T* E 24mm F1.8 ZA Sony E 10-18mm F4 OSS +11 more
djp58 Regular Member • Posts: 351
Re: Odd lens flare with the 10-18 zoom

abdoozy wrote:

This was shot at 10mm. The sunburst looked cool in the viewfinder. On the monitor, not so much. Was this a function of the lens being at f/22, the fact that the lens had a filter onboard (albeit a good quality Marumi lens protector), or should I just expect this kind of odd flare artifacts when shooting a UWA directly into the sun?

Some of those flare dots are downright bizarre.. they look like donuts. Or condoms

-- hide signature --

yr. obt. svt.,
abdoozy
WSSA Member#160

I think its pretty normal under the shooting conditions you were using.  I've been able to get all of my Sony mirrorless cameras (NEX 5n, NEX 7, A7R) to behave similarly with pretty much any lens I've tried - though, A7R is the easiest to make flare this way.  I probably should try my E-PL3 and Pentax Q to see if they do similar (I do think the larger the sensor and closer the rear lens element is to the sensor, the worse the issue, so micro-4/3 and Pentax Q should have less of a problem).  I certainly don't see this as an issue with the camera or lens, as I do not shoot under these conditions other than to test the lens to see where it starts flaring.

David

 djp58's gear list:djp58's gear list
Sony Alpha NEX-7 Sony Alpha 7R Sony E 18-200mm F3.5-6.3 OSS Sony E 50mm F1.8 OSS Sony FE 35mm F2.8 +13 more
Euell Senior Member • Posts: 1,815
Re: Odd lens flare with the 10-18 zoom

uhligfd wrote:

abdoozy wrote:

This was shot at 10mm. The sunburst looked cool in the viewfinder. On the monitor, not so much. Was this a function of the lens being at f/22, the fact that the lens had a filter onboard (albeit a good quality Marumi lens protector), or should I just expect this kind of odd flare artifacts when shooting a UWA directly into the sun?

Some of those flare dots are downright bizarre.. they look like donuts. Or condoms

-- hide signature --

yr. obt. svt.,
abdoozy
WSSA Member#160

To learn more about such flare pattern you should invest the $ 50 it takes to purchase a pinhole cover for the NEX. Then you would see wild flares in any color if you shoot into the sun. These are at f/150 or smaller and then this effect becomes even more prevalent.

Otherwise: Go and learn NOT to use f/22 into the sun; and do clean your lenses and sensor every once in a while.

But I am serious about those pinhole covers, the cheapest new lens you can buy,so try one and learn.

Hmm. Galen Rowell recommended shooting at F22 for sun stars.  What is the authority for your comment ?

 Euell's gear list:Euell's gear list
Sony RX100 Canon EOS 7D Sony Alpha NEX-5 Sony Alpha NEX-6 Sony a6000 +15 more
viking79
viking79 Forum Pro • Posts: 14,137
Re: Odd lens flare with the 10-18 zoom

abdoozy wrote:

After 40+ years of photography I know enough not to shoot f/22 into the sun (or anywhere else) for any reason except flat experimentation, which is all I was doing here. I appreciate comments regarding the spots and the odd rainbow effect, which I'd heard about with the A7 but not with the NEX6.

Samples I have seen show NEX 6 performance is more like A7 then A7R in this regard.

The A7 got a lot of negative publicity on it as people are probably being more critical of the sensor.  The A7R doesn't seem to do it near as much.

I imagine it is related to sensor coverings used.

Eric

 viking79's gear list:viking79's gear list
Sony Alpha 7R Samsung NX1 Samsung NX 30mm F2 Pancake Samsung NX 85mm F1.4 ED SSA Samsung NX 60mm F2.8 Macro ED OIS SSA +5 more
Dsnoir
Dsnoir Contributing Member • Posts: 596
Re: Odd lens flare with the 10-18 zoom

I have the Sigma 8-16 lens, it virtualy focuses on the lens surface, so that dust tends to show up, lens flare is always a feature/problem with very wide lenses.  If your trying to get the star burst effect from a light source you need to stop down below f16, so I cannot see that f22 is out of the ordinary, or wrong

 Dsnoir's gear list:Dsnoir's gear list
Sony a77 II Sony Alpha 7R II Sony 100mm F2.8 Macro Sigma 8-16mm F4.5-5.6 DC HSM Sony 70-400mm F4-5.6 G SSM II +7 more
Keyboard shortcuts:
FForum MMy threads