Componon Fungus?

[Dave Schneidr]

I came across an 80mm/5.6 Componon in a shop on a recent business trip. It looke d to be in very good condition and at $45 I thought I could use it. Closer inspe ction after returning home shows what may be fungus. The front and rear glass su rfaces are crystal clear but when held up to a bright light an internal glas sur face 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 degrad ation of the coating? The lens is an older chrome barrle version with serial num bers 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 clean ed?

[Wayne Campbell]

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

[Dave Schneidr]

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

[Paul Schilliger]

I had a similar discovery looking through a 25 years old G-Claron I recently bou ght. 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 l ight source nearby, it could well be the same phenomenon.

[Nacio Jan Brown]

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

[Paul Schilliger]

"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 someon e could help me?

[John Hicks]

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

[Z1X4Y7]

Paul:

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

&lt a href="http,etc" &gt site name &lt /a &gt

You may mean something else.

[Z1X4Y7]

Your link is:

Fungal lenses (http://www.greenspun.com/bboard/q-and-a-fetch-msg.tcl?msg_id=003 Bc5)

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

Z

[Paul Schilliger]

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

[Z1X4Y7]

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

[Paul Schilliger]

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 appe ars. But this just doesn't work so in the dialog box of the forum. When I drop the li nk, it transforms to plain text! What else shall I do? Thanks! (Sorry, Dave, for the intrusive e-mails!)

[Z1X4Y7]

Paul:

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

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

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,,,,

[Paul Schilliger]

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

[Z1X4Y7]

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

[Paul Schilliger]

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

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

[Z1X4Y7]

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

HTML playground (http://www.greenspun.com/bboard/q-and-a.tcl?topic=HTML%20Playgro und)

That should do it.

Z