I came across an 80mm/5.6 Componon in a shop on a recent business trip. It looked to be in very good condition and at $45 I thought I could use it. Closer inspection after returning home shows what may be fungus. The front and rear glass surfaces are crystal clear but when held up to a bright light an internal glas surface looks like it has a uniform coating of white speckles. It appears that the speckles are uniform across the glass. Is this fungus? Or is it dust or a degradation of the coating? The lens is an older chrome barrle version with serial numbers indicating the late 50s I think. I haven't had a chance to use it yet since my darkroom is still in the remodeling phase. Is it worth having the lens cleaned?

-- Dave Schneider (dschneider@arjaynet.com), June 14, 2000

Answers

I guess your lens is truly a Schneider Componon. (Sorry, couldn't resist it.)

-- Wayne Campbell (wtcamjr@aol.com), June 14, 2000.

I should clarify, the marks look more like spider webs perhaps than specs. Could it be aging of the coatings or something?

-- Dave Schneider (dschneider@arjaynet.com), June 14, 2000.

I had a similar discovery looking through a 25 years old G-Claron I recently bought. If you look under "lenses" the thread "Haze in lens", you might get some useful informations. I my case, I was able to identify what I saw as "bloom" thanks to the kind contributors. If what you see is invisible when you look straight to a light source, but visible when you look to a dark surface with a light source nearby, it could well be the same phenomenon.

-- Paul Schilliger (pschilliger@smile.ch), June 14, 2000.

I couldn't find the above referenced "haze" thread. There are several past threads about lenses. Paul, could you be more specific. Or does anyone else know where to look? Thanks, njb

-- Nacio Brown (njb@limn.net), June 14, 2000.

"Haze in lens" : last "lenses" group at bottom of page, actually 18th thread. I have not found a way to properly insert an HTML link in the dialog boxes of this forum so far. If someone could help me?

-- Paul Schilliger (pschilliger@smile.ch), June 15, 2000.

If the marks look like tiny spiderwebs, it's fungus.

-- John Hicks (jbh@magicnet.net), June 15, 2000.

Paul:

I'm not sure what you mean. It is just straight HTML

< a href="http,etc" > site name < /a >

You may mean something else.

-- Z1X4Y7 (Z1X4Y7@aol.com), June 15, 2000.

Your link is:

Fungal lenses

If this is what you want, you can see page view.

Z

-- Z1X4Y7 (Z1X4Y7@aol.com), June 15, 2000.

Z, see, this is how it comes out when I shift the active link onto the dialog box. It just isn't an active link any more! :http://www.greenspun.com/bboard/q-and-a-fetch-msg.tcl?msg_id=003Bc5

-- Paul Schilliger (pschilliger@smile.ch), June 17, 2000.

Paul:

You need to write out the HTML command in the dialogue box. By the way, why do you have a colon in front of the http. If you have netscape go to view and look at this thread under page source [there is a similar feature with IE. See how the link to your hazy lens thread was formed.

Best wishes,,,,

Z

-- Z1X4Y7 (Z1X4Y7@aol.com), June 17, 2000.

Hi Z, Kind of you to help me! This is someting I tried many times but but wasn't able to accomplish. I have Netscape and a Mac. Usually, when I want to join a link in a mail, I drag it and drop it on my page and that's it! Or I hold the mouse button down and the "insert a link" function appears. But this just doesn't work so in the dialog box of the forum. When I drop the link, it transforms to plain text! What else shall I do? Thanks! (Sorry, Dave, for the intrusive e-mails!)

-- Paul Schilliger (pschilliger@smile.ch), June 17, 2000.

Paul:

Its ok. The link to your thread should be typed in as follows:

< a href="http://www.greenspun.com/bboard/q-and-a-fetch-msg.tcl?msg_id=003 Bc5" > Hazy Lenses < /a >

The only space should be between a and href. I have spaces between the < symbols and what follows because I am using an escape so that the < symbols will show up on the screen.

I'm using a G4/500 with netscape and IE.

Best wishes,,,,

-- Z1X4Y7 (Z1X4Y7@aol.com), June 17, 2000.

O.K, gotcha! Will have to learn some basic HTML language. Thanks, Z.

-- Paul Schilliger (pschilliger@smile.ch), June 17, 2000.

Paul:

If you haven't done this much before, there is a site on Phil's board called HTML playground. It is there for people to try these things out before driving the site administrator here nuts.

Give it a try.

It is there for that purpose. Have fun.

Best wishes,,,,

Z

-- Z1X4Y7 (Z1X4Y7@aol.com), June 17, 2000.

O.K, got it! (Didn't mean to be rude, just my approximate english!). Will have to learn some basic HTML language. Thanks Z.

By the way, I wasn't able to find the "HTML playground" you mentioned.

-- Paul Schilliger (pschilliger@smile.ch), June 19, 2000.

It is on LUSENET which can be accessed at the top of the page; or:

HTML playground

That should do it.

Z

-- Z1X4Y7 (Z1X4Y7@aol.com), June 19, 2000.