Circles around bright lights (film; Pentax ME)

pentytaxy · 04-11-2016, 09:51 AM

Got me confused, those rings around bright spots of light. Help me out, guys.

Pentax ME SE, SMC Pentax 50mm 1.7, Fujicolor C200

Last edited by photolady95; 04-11-2016 at 10:00 AM. Reason: removed links.

photolady95 · 04-11-2016, 10:00 AM

You need to post the actual photos and not links to those photos.

pentytaxy · 04-11-2016, 10:17 AM

builttospill · 04-11-2016, 10:25 AM

Do you have a filter on the front of your lens? If so, take it off and the rings will disappear.

pentytaxy · 04-11-2016, 10:30 AM

No filter. Just a plain lens.

Painter · 04-11-2016, 10:42 AM

That's weird for Fuji 200 because that looks a lot like what happens with film that doesn't have an anti halation layer. I think builttospill is right though because of the way the white light looks like a rainbow.

pentytaxy · 04-11-2016, 10:45 AM

But there's no filter.

It's evident on daylight photos too, but to a lesser extent, as only the brightest sources have these halos. Any theories?

stevebrot · 04-11-2016, 11:46 AM

Water condensation inside lens or on film?

Steve

miner74 · 04-11-2016, 12:14 PM

Does this occur with every lens you try or just the 50mm F1.7?

pentytaxy · 04-11-2016, 12:21 PM

I just got the lens cleaned professionally. As soon as I get another lens, I'll try it out.

builttospill · 04-11-2016, 12:40 PM

Does the lens appear clean after you got it back? I'm wondering if there is any cleaning residue or grease/oil on the front or rear elements. Check for this or streaks with a bright light.

Also curious to see the results with a different lens.

**RKKS08** · 04-11-2016, 02:05 PM

It looks like fog on one or more lens surface(s).
As stevebrot said.

**Apet-Sure** · 04-11-2016, 02:17 PM

I have a Pentax-M 50mm f1.7 from an old Pentax ME Super that I use on my K10D. It's my best lens. I don't get the rings that you are getting.

pentytaxy · 04-11-2016, 10:12 PM

Check these out, guys. The rings are visible in two photos. Thoughts?

---------- Post added 04-11-16 at 10:14 PM ----------

The lens, to my eye, looks physically perfect. The effect is sometimes seen in the finder too.

TaoMaas · 04-12-2016, 05:42 AM

Originally posted by pentytaxy

I just got the lens cleaned professionally.

Why did you have the lens cleaned? And was it doing anything like this before you had it cleaned? I'm tending to agree with some of the others who think it's something on one of the internal elements of the lens.

04-11-2016, 09:51 AM	#1
pentytaxy Junior Member Join Date: Apr 2016 Photos: Albums Posts: 42	Circles around bright lights (film; Pentax ME) Got me confused, those rings around bright spots of light. Help me out, guys. Pentax ME SE, SMC Pentax 50mm 1.7, Fujicolor C200 Last edited by photolady95; 04-11-2016 at 10:00 AM. Reason: removed links.

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04-11-2016, 10:00 AM	#2
photolady95 Otis Memorial Pentaxian Join Date: May 2009 Location: Cruising the forum watching his back Photos: Gallery \| Albums Posts: 12,712	You need to post the actual photos and not links to those photos.

04-11-2016, 10:17 AM	#3
pentytaxy Junior Member Join Date: Apr 2016 Photos: Albums Posts: 42 Original Poster

04-11-2016, 10:25 AM	#4
builttospill Pentaxian Join Date: Jun 2009 Location: Utah, Idaho Photos: Gallery Posts: 2,398	Do you have a filter on the front of your lens? If so, take it off and the rings will disappear.

04-11-2016, 10:30 AM	#5
pentytaxy Junior Member Join Date: Apr 2016 Photos: Albums Posts: 42 Original Poster	No filter. Just a plain lens.

04-11-2016, 10:42 AM	#6
Painter Veteran Member Join Date: Jun 2008 Location: Canada Photos: Gallery Posts: 348	That's weird for Fuji 200 because that looks a lot like what happens with film that doesn't have an anti halation layer. I think builttospill is right though because of the way the white light looks like a rainbow.

04-11-2016, 10:45 AM	#7
pentytaxy Junior Member Join Date: Apr 2016 Photos: Albums Posts: 42 Original Poster	But there's no filter. It's evident on daylight photos too, but to a lesser extent, as only the brightest sources have these halos. Any theories?

04-11-2016, 11:46 AM	#8
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	Water condensation inside lens or on film? Steve

04-11-2016, 12:14 PM	#9
miner74 New Member Join Date: May 2015 Location: South central Oklahoma Posts: 14	Does this occur with every lens you try or just the 50mm F1.7?

04-11-2016, 12:21 PM	#10
pentytaxy Junior Member Join Date: Apr 2016 Photos: Albums Posts: 42 Original Poster	I just got the lens cleaned professionally. As soon as I get another lens, I'll try it out.

04-11-2016, 12:40 PM	#11
builttospill Pentaxian Join Date: Jun 2009 Location: Utah, Idaho Photos: Gallery Posts: 2,398	Does the lens appear clean after you got it back? I'm wondering if there is any cleaning residue or grease/oil on the front or rear elements. Check for this or streaks with a bright light. Also curious to see the results with a different lens.

04-11-2016, 02:05 PM	#12
RKKS08 Site Supporter Join Date: Mar 2010 Location: Frankfurt am Main Posts: 1,241	It looks like fog on one or more lens surface(s). As stevebrot said.

04-11-2016, 02:17 PM	#13
Apet-Sure Site Supporter Join Date: Dec 2015 Location: Goldsboro North Carolina Photos: Gallery \| Albums Posts: 2,872	I have a Pentax-M 50mm f1.7 from an old Pentax ME Super that I use on my K10D. It's my best lens. I don't get the rings that you are getting.

04-11-2016, 10:12 PM	#14
pentytaxy Junior Member Join Date: Apr 2016 Photos: Albums Posts: 42 Original Poster	Check these out, guys. The rings are visible in two photos. Thoughts? ---------- Post added 04-11-16 at 10:14 PM ---------- The lens, to my eye, looks physically perfect. The effect is sometimes seen in the finder too.

04-12-2016, 05:42 AM	#15
TaoMaas Pentaxian Join Date: May 2007 Location: Oklahoma City Photos: Gallery \| Albums Posts: 3,574	Originally posted by pentytaxy I just got the lens cleaned professionally. Why did you have the lens cleaned? And was it doing anything like this before you had it cleaned? I'm tending to agree with some of the others who think it's something on one of the internal elements of the lens.