Is this flare?

hollywoodfred · 08-12-2012, 05:46 PM

The image below was captured with a KX and M50/1.4 on Fuji 400, untouched except to reduce the size to meet PF requirements . It was just about noon with extreme sunlight when I shot it. At first I didn't notice the dual lines parallel to the fork. Is the an example of flare? And regardless of what it is, could someone give a clue as to how it occurred.

thanks in advance,
Fred

Original (downsized)

Crop from the original

macTak · 08-12-2012, 06:11 PM

The most likely cause is that you had a filter on the lens--the double image is caused by a reflection between the filter and the lens.

hollywoodfred · 08-12-2012, 06:37 PM

Ah, that explains it. I forgot I had a polarize filter on that day. Thanks makTak!

I don't recall seeing this reflection during the shot. Should it have been visible through the viewfinder?

Colbyt · 08-12-2012, 07:01 PM

Originally posted by hollywoodfred

Ah, that explains it. I forgot I had a polarize filter on that day. Thanks makTak!

I don't recall seeing this reflection during the shot. Should it have been visible through the viewfinder?

In my limited experience I don't think so, mainly because of image size. I learned this one the had way after shooting some neon signs in fairly dim lighting.

tim60 · 10-06-2012, 02:18 AM

Originally posted by Colbyt

In my limited experience I don't think so, mainly because of image size. I learned this one the had way after shooting some neon signs in fairly dim lighting.

Colbyt, do you think this effect might have to do with why I have been having trouble getting sharp images with Super Takumar 28 and 50 lenses under dull artificial light with UV filter on? The problem is the images frequently appear soft or very soft even though the focus scale seemed set right for the distance and the image in VF seemed sharp. The effect is not noticeable on the other 8 takumars which have rounder front elements.

I am speculating, more reflectance because of single coating, which then has several reflection cycles, each moving the light sideways a bit, and hence the softness.

stevebrot · 10-06-2012, 10:48 AM

Originally posted by tim60

Colbyt, do you think this effect might have to do with why I have been having trouble getting sharp images with Super Takumar 28 and 50 lenses under dull artificial light with UV filter on? The problem is the images frequently appear soft or very soft even though the focus scale seemed set right for the distance and the image in VF seemed sharp. The effect is not noticeable on the other 8 takumars which have rounder front elements.

I am speculating, more reflectance because of single coating, which then has several reflection cycles, each moving the light sideways a bit, and hence the softness.

Take off the filter.

One other thing to consider. Your photos will never be any better than the illumination of the subject. If the light is dull, the same will be true of the photo. If the light does not have a full color spectrum, ditto. Light is foundational.

Steve

fuent104 · 10-06-2012, 01:31 PM

I believe the technical term for what you see in the image is "ghosting." I don't know that it would have helped, but one of the reasons I like to use hoods whenever possible is that they can help keep out things like this, which you may not even notice at the time of shooting.

hollywoodfred · 10-06-2012, 04:34 PM

Originally posted by fuent104

I believe the technical term for what you see in the image is "ghosting." I don't know that it would have helped, but one of the reasons I like to use hoods whenever possible is that they can help keep out things like this, which you may not even notice at the time of shooting.

Thanks for the tip. I didn't even own a hood on the day that shot was taken. But since then, I've collected hoods for each of my lens and use them nearly always.

Colbyt · 10-06-2012, 04:45 PM

+1 on taking the filter off. I plain just don't use them with digital equipment.

08-12-2012, 05:46 PM	#1
hollywoodfred Veteran Member Join Date: Jan 2012 Location: Vinton, Iowa Photos: Albums Posts: 358	Is this flare? The image below was captured with a KX and M50/1.4 on Fuji 400, untouched except to reduce the size to meet PF requirements . It was just about noon with extreme sunlight when I shot it. At first I didn't notice the dual lines parallel to the fork. Is the an example of flare? And regardless of what it is, could someone give a clue as to how it occurred. thanks in advance, Fred Original (downsized) Crop from the original

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08-12-2012, 06:11 PM	#2
macTak Veteran Member Join Date: Apr 2010 Photos: Gallery Posts: 759	The most likely cause is that you had a filter on the lens--the double image is caused by a reflection between the filter and the lens.

08-12-2012, 06:37 PM	#3
hollywoodfred Veteran Member Join Date: Jan 2012 Location: Vinton, Iowa Photos: Albums Posts: 358 Original Poster	Ah, that explains it. I forgot I had a polarize filter on that day. Thanks makTak! I don't recall seeing this reflection during the shot. Should it have been visible through the viewfinder?

08-12-2012, 07:01 PM	#4
Colbyt Veteran Member Join Date: Dec 2010 Location: Central Kentucky Photos: Gallery \| Albums Posts: 1,417	Originally posted by hollywoodfred Ah, that explains it. I forgot I had a polarize filter on that day. Thanks makTak! I don't recall seeing this reflection during the shot. Should it have been visible through the viewfinder? In my limited experience I don't think so, mainly because of image size. I learned this one the had way after shooting some neon signs in fairly dim lighting.

10-06-2012, 02:18 AM	#5
tim60 Pentaxian Join Date: Apr 2011 Photos: Albums Posts: 8,745	Originally posted by Colbyt In my limited experience I don't think so, mainly because of image size. I learned this one the had way after shooting some neon signs in fairly dim lighting. Colbyt, do you think this effect might have to do with why I have been having trouble getting sharp images with Super Takumar 28 and 50 lenses under dull artificial light with UV filter on? The problem is the images frequently appear soft or very soft even though the focus scale seemed set right for the distance and the image in VF seemed sharp. The effect is not noticeable on the other 8 takumars which have rounder front elements. I am speculating, more reflectance because of single coating, which then has several reflection cycles, each moving the light sideways a bit, and hence the softness.

10-06-2012, 10:48 AM	#6
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	Originally posted by tim60 Colbyt, do you think this effect might have to do with why I have been having trouble getting sharp images with Super Takumar 28 and 50 lenses under dull artificial light with UV filter on? The problem is the images frequently appear soft or very soft even though the focus scale seemed set right for the distance and the image in VF seemed sharp. The effect is not noticeable on the other 8 takumars which have rounder front elements. I am speculating, more reflectance because of single coating, which then has several reflection cycles, each moving the light sideways a bit, and hence the softness. Take off the filter. One other thing to consider. Your photos will never be any better than the illumination of the subject. If the light is dull, the same will be true of the photo. If the light does not have a full color spectrum, ditto. Light is foundational. Steve

10-06-2012, 01:31 PM	#7
fuent104 Veteran Member Join Date: Apr 2011 Location: California Photos: Gallery Posts: 1,356	I believe the technical term for what you see in the image is "ghosting." I don't know that it would have helped, but one of the reasons I like to use hoods whenever possible is that they can help keep out things like this, which you may not even notice at the time of shooting.

10-06-2012, 04:34 PM	#8
hollywoodfred Veteran Member Join Date: Jan 2012 Location: Vinton, Iowa Photos: Albums Posts: 358 Original Poster	Originally posted by fuent104 I believe the technical term for what you see in the image is "ghosting." I don't know that it would have helped, but one of the reasons I like to use hoods whenever possible is that they can help keep out things like this, which you may not even notice at the time of shooting. Thanks for the tip. I didn't even own a hood on the day that shot was taken. But since then, I've collected hoods for each of my lens and use them nearly always.

10-06-2012, 04:45 PM	#9
Colbyt Veteran Member Join Date: Dec 2010 Location: Central Kentucky Photos: Gallery \| Albums Posts: 1,417	+1 on taking the filter off. I plain just don't use them with digital equipment.