Newton Rings??

one90guy · Jul 26, 2013

Only when using my Mamiya NC1000S with 50mm lens I get a strange horizontal streak across the photo and after googling Newton Rings feel reasonably sure this is the problem. It always appears in the middle of photo but only on random shots. I have been reading up on the rings but not clear on preventing them. Would a lens hood do this, I know the lens hood cures lens flare? I know the hoods are not expensive but I have a very limited photo budget and would rather buy film and chemicals

Thanks
David

Prof_Pixel · Jul 26, 2013

I doubt you are seeing Newton Rings. It might be some internal reflection in your camera that a lens hood might help.

mweintraub · Jul 26, 2013

Any samples you can post?

I wonder if it's the actual film. Maybe needs to be refixed or cleaned.

E. von Hoegh · Jul 26, 2013

Prof_Pixel said:
I doubt you are seeing Newton Rings. It might be some internal reflection in your camera that a lens hood might help.

Yes, whatever it may be, it isn't Newton's rings. Look for a smear or fingerprint on the lens, even a tiny one. As always, a lens hood is a good thing to use.

ic-racer · Jul 26, 2013

They could be Newton rings if you are printing with a plain glass negative carrier.

tkamiya · Jul 26, 2013

Newtons ring happens when two objects touch each other. So if it's on film, it can't be newton's ring.

How do you print your photographs? It's off topic here but certain scanner has a tendency to do this if that's what you are doing. Also, lens hood is a good thing to have..... if you buy a third party one, it's less than 10 bucks. It's even possible one of us here on APUG have one to send to you.

Say you have it on one frame. Does it always happen if you print from that negative multiple times EXACTLY the same way?

mweintraub · Jul 26, 2013

Do you see them on the negative?

one90guy · Jul 26, 2013

mweintraub said:
Do you see them on the negative?

Yes, but only on the photos that I used the 50mm lens but some of the 50mm photos did not have it.

Is there directions for posting photos, I do not seem to be able from my computer or from online:confused:
David

one90guy · Jul 26, 2013

tkamiya said:
Newtons ring happens when two objects touch each other. So if it's on film, it can't be newton's ring.

How do you print your photographs? It's off topic here but certain scanner has a tendency to do this if that's what you are doing. Also, lens hood is a good thing to have..... if you buy a third party one, it's less than 10 bucks. It's even possible one of us here on APUG have one to send to you.

Say you have it on one frame. Does it always happen if you print from that negative multiple times EXACTLY the same way?

Only the photos from this one roll had the rings and none when I used 135mm lens. All scanned at same time, and 2 rolls from another camera had no problems:confused:

David

tkamiya · Jul 26, 2013

You can only post photographs to APUG if you are a paying subscriber. But, you can upload it elsewhere and post a link if you like.

I'm still having hard time believing lens can cause rings looking like newton's ring on negative. You say you CAN see it on the negative itself.... Do you have, somehow, an access to a microscope?

Prof_Pixel · Jul 26, 2013

tkamiya said:
I'm still having hard time believing lens can cause rings looking like newton's ring on negative.

Originally they were described as "I get a strange horizontal streak across the photo" rather than a ring.

tkamiya · Jul 26, 2013

Newton's streak?

pbromaghin · Jul 26, 2013

Does this streak go lengthwise along the roll? Across?

one90guy · Jul 26, 2013

pbromaghin said:
Does this streak go lengthwise along the roll? Across?

No just some, only the ones taken with the 50mm lens. And not all of the photos taken with the 50mm had the pattern. The pattern looks like flatten round circles down the center of the negative horizontally.

David

one90guy · Jul 26, 2013

Hope this works, my computer skills are very poor. The pattern here is vertical due to camera position.

http://www.flickr.com/photos/49854418@N07/9370340991/

David

stevebarry · Jul 26, 2013

But you don't see it on the bare negative right? Out of the sleeve. Just on the scan? Using a flat bed scanner?

Sent from my SCH-I535 using Tapatalk 2

tkamiya · Jul 26, 2013

That's an obvious newton's ring! Flip your negative upside down and scan it. I guarantee you won't see it!

pbromaghin · Jul 27, 2013

tkamiya + 1

Yup, that is a scanning phenomenon. Your film is touching the glass, it happens to me all the time It's a pain in the ass. Do what he says.

Peter

one90guy · Jul 27, 2013

stevebarry said:
But you don't see it on the bare negative right? Out of the sleeve. Just on the scan? Using a flat bed scanner?

Sent from my SCH-I535 using Tapatalk 2

You are correct, not on negative. Strange the way it happened on certain photos from just my 50mm lens. In all the rolls I have scanned I have never seen this before. thanks for your help.

David

one90guy · Jul 27, 2013

pbromaghin said:
tkamiya + 1

Yup, that is a scanning phenomenon. Your film is touching the glass, it happens to me all the time It's a pain in the ass. Do what he says.

Peter

Thanks for the help, never had this happen before.

David

one90guy · Jul 27, 2013

tkamiya said:
That's an obvious newton's ring! Flip your negative upside down and scan it. I guarantee you won't see it!

Thank you and everyone else for the help. Never to old to learn Did go ahead and order a lens hood.

David

mweintraub · Jul 29, 2013

one90guy said:
You are correct, not on negative. Strange the way it happened on certain photos from just my 50mm lens. In all the rolls I have scanned I have never seen this before. thanks for your help.

David

In the reply to me, you said they are on the negatives.
(there was a url link here which no longer exists)

Nikon Collector · Jul 29, 2013

I used the 1000s and 50/1.4 foe years great camera, only got rid of it due to lens availability.

Newton Rings??

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