Problem with the lens 9-18 Oly

Started 4 months ago | Discussions
astone
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Problem with the lens 9-18 Oly
4 months ago

It was a sunny day. I took a number of shots with my OM-D and 9-18 Oly.  You can see a problem. 

Bill Wallace
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Re: Problem with the lens 9-18 Oly
In reply to astone, 4 months ago

Well you're shooting right into the sun with I'm guessing no filters, that's a majority of the problem. Do you get lens flare  or those strange colors when shooting w/o the sun? If the lens exhibits normal behavior in all other conditions then you know what is causing it.

Havent encountered anything like that with my 9-18.

Bill

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Bill Wallace
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And I believe in a promised land"....

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astone
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Re: Problem with the lens 9-18 Oly
In reply to Bill Wallace, 4 months ago

Bill Wallace wrote:

Well you're shooting right into the sun with I'm guessing no filters, that's a majority of the problem. Do you get lens flare or those strange colors when shooting w/o the sun? If the lens exhibits normal behavior in all other conditions then you know what is causing it.

Havent encountered anything like that with my 9-18.

Bill

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Bill Wallace
http://bwallace.zenfolio.com/
"Mister I ain't a boy no I'm a man
And I believe in a promised land"....

It happened only with this lens, no filter.  Sun was quite high, with 10 to 25 degrees horizontal angle.  Nothing like that when sun is off.

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Bob Tullis
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Not surprising
In reply to astone, 4 months ago

This lens isn't known to be very problematic in the flare dept., and any lens would be challenged to some degree forcing the issue like this.

In a real-life situation including the a bright sun like that in the frame that would be avoided, the lens' front element would be shielded, or the composition and aperture would be adjusted to minimize the flare.

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...Bob, NYC
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"Well, sometimes the magic works. . . Sometimes, it doesn't." - Little Big Man
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Edited 4 months ago by Bob Tullis
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astone
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Re: Not surprising
In reply to Bob Tullis, 4 months ago

Bob Tullis wrote:

This lens isn't known to be very problematic in the flare dept., and any lens would be challenged to some degree forcing the issue like this.

In a real-life situation including the a bright sun like that in the frame that would be avoided, the lens' front element would be shielded, or the composition and aperture would be adjusted to minimize the flare.

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...Bob, NYC
http://www.bobtullis.com
"Well, sometimes the magic works. . . Sometimes, it doesn't." - Little Big Man
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I understand the issue,  just wanted to demo this effect.

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Chris Tofalos
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Re: Not surprising
In reply to astone, 4 months ago

I've seen a similar sort of problem, although it was nearer the centre of the frame and, I think, caused by light bouncing from the sensor onto the rear element and back again.

I have the 9-18 and have never had such a problem (yet!)...

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Chris Tofalos
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Guy Parsons
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Normal for some lenses.
In reply to astone, 4 months ago

Just now tried my 9-18mm into the sun (sun inside the frame) with E-PL5 and same pattern with the small purple flare blob down low. For fun tried Sigma 19mm and absolutely no flare problems.

All lenses do something different.

I've even seen CG generated movies and cartoon movies where they ADD massive multiple flare patterns to try and make it look "real". Certainly a sad cliché situation, better if no flare at all.

Regards...... Guy

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dav1dz
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Re: Problem with the lens 9-18 Oly
In reply to astone, 4 months ago

Any UWA directly shot into the sun will get you this effect. It's called lens flare. Buy a lens hood.

http://www.adorama.com/catalog.tpl?op=article_012703

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Guy Parsons
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In the 'hood.
In reply to dav1dz, 4 months ago

dav1dz wrote:

Any UWA directly shot into the sun will get you this effect. It's called lens flare. Buy a lens hood.

A lens hood does not do anything useful if the sun is in the frame like the OP and my not shown efforts. But anyone is slightly mad anyway to not use lens hoods for other reasons, like out of frame bright light interfering and for mechanical protection of the lens.

Regards...... Guy

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sigala1
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Lens flare normal, purple flare not so much
In reply to astone, 4 months ago

While lens flare is normal when shooting into the sun with a wide angle lens, the EM-5 has the distinct property of reflecting purple light around your image.

To fix this problem, buy an inexpensive Panasonic G3 to use with your wide angle lens.

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Savas Kyprianides
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Re: Lens flare normal, purple flare not so much
In reply to sigala1, 4 months ago

sigala1 wrote:

While lens flare is normal when shooting into the sun with a wide angle lens, the EM-5 has the distinct property of reflecting purple light around your image.

To fix this problem, buy an inexpensive Panasonic G3 to use with your wide angle lens.

It's not limited to the Panasonic 7-14? I'll get the same if I buy the Olympus wide zoom on an OM-D?

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astone
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Re: Problem with the lens 9-18 Oly
In reply to dav1dz, 4 months ago

dav1dz wrote:

Any UWA directly shot into the sun will get you this effect. It's called lens flare. Buy a lens hood.

http://www.adorama.com/catalog.tpl?op=article_012703

All shots were taken with the lens hood LH-55B

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astone
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Re: Lens flare normal, purple flare not so much
In reply to Savas Kyprianides, 4 months ago

Savas Kyprianides wrote:

sigala1 wrote:

While lens flare is normal when shooting into the sun with a wide angle lens, the EM-5 has the distinct property of reflecting purple light around your image.

To fix this problem, buy an inexpensive Panasonic G3 to use with your wide angle lens.

It's not limited to the Panasonic 7-14? I'll get the same if I buy the Olympus wide zoom on an OM-D?

The main reason I placed these shots because over time I’ve seen here a lot of complains regarding Panasonic 7-14.  My lens-Oly 9-18 is not limited to same problems.

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sigala1
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Re: Lens flare normal, purple flare not so much
In reply to Savas Kyprianides, 4 months ago

Savas Kyprianides wrote:

sigala1 wrote:

While lens flare is normal when shooting into the sun with a wide angle lens, the EM-5 has the distinct property of reflecting purple light around your image.

To fix this problem, buy an inexpensive Panasonic G3 to use with your wide angle lens.

It's not limited to the Panasonic 7-14? I'll get the same if I buy the Olympus wide zoom on an OM-D?

Apparently the answer is no, it's NOT just limited to the Panasonic, based on those photos which were shown. But the 9-18 is said to produce less flare, so the purple flare doesn't show as often and is less visible.

But seriously, if you can afford either of these lenses, you can afford a cheap Panasonic backup body. There's usually one or two on sale real cheap at Amazon or other places like that.

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amalric
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Re: Problem with the lens 9-18 Oly
In reply to astone, 4 months ago

astone wrote:

dav1dz wrote:

Any UWA directly shot into the sun will get you this effect. It's called lens flare. Buy a lens hood.

http://www.adorama.com/catalog.tpl?op=article_012703

All shots were taken with the lens hood LH-55B

Well I wish you wouldn't call it the 9-18 Oly, but the Micro one. The original 4/3 9-18 flares less when shot against the Sun, as I can witness.

And so you might see less reflections of the sensor. (Is it due to better telecentricity?)

A hood helps, but if you do want to include the sun in the picture, than a ND filter might solve the issue.

Am.

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Chez Wimpy
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well, well
In reply to astone, 4 months ago

I guess I shouldn't feel too bad about going with the 7-14... even the 9-18 has the purple problem on the OMD.  It would be nice to see the two back to back, but I doubt anyone has them both on hand.

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Chez Wimpy
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Re: Lens flare normal, purple flare not so much
In reply to sigala1, 4 months ago

sigala1 wrote:

But seriously, if you can afford either of these lenses, you can afford a cheap Panasonic backup body. There's usually one or two on sale real cheap at Amazon or other places like that.

Not only that, but the GH1/GH2 have the multi-AR feature, which makes the most sense with wide angle lenses where slight changes in AR make a significant difference to horizontal/vertical FOV.

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-CW

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Anders W
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Re: Problem with the lens 9-18 Oly
In reply to astone, 4 months ago

astone wrote:

It was a sunny day. I took a number of shots with my OM-D and 9-18 Oly. You can see a problem.

Many thanks for posting these samples, which "nicely" confirm what was eventually concluded in this old and long thread about purple flare with the 7-14 on the E-M5, i.e., that flare from any lens, not just the 7-14, has a tendency to go purple on the E-M5 (and some other cameras). UWAs, like the 7-14 and 9-18 are for obvious reasons (very wide angles, short hoods, many lens elements) more likely to produce flare than other lenses. That's about it.



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Savas Kyprianides
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Re: Lens flare normal, purple flare not so much
In reply to Chez Wimpy, 4 months ago

Chez Wimpy wrote:

sigala1 wrote:

But seriously, if you can afford either of these lenses, you can afford a cheap Panasonic backup body. There's usually one or two on sale real cheap at Amazon or other places like that.

Not only that, but the GH1/GH2 have the multi-AR feature, which makes the most sense with wide angle lenses where slight changes in AR make a significant difference to horizontal/vertical FOV.

--
-CW

What's a multi-AR feature? What model Panny is a good one to look for?

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Bob Tullis
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Re: well, well
In reply to Chez Wimpy, 4 months ago

Chez Wimpy wrote:

I guess I shouldn't feel too bad about going with the 7-14... even the 9-18 has the purple problem on the OMD. It would be nice to see the two back to back, but I doubt anyone has them both on hand.

I have both, but haven't shot them side by side.   The Vario G 7-14 flares much easier, and the purple flare is much more distinct, richer, and intrusive.   Purple flare aside, here's a curious result with the 7-14. . . just out of view was a cross walk sign, not quite shielded by the hood on the lens.   One of the reasons for getting the 7-14 related to this sort of objective, for the wider FOV.   I didn't get such results with previous exposures at this location with the 9-18.   FWIW





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...Bob, NYC
http://www.bobtullis.com
"Well, sometimes the magic works. . . Sometimes, it doesn't." - Little Big Man
.

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