[Alt-photo] Alt-photo-process-list Digest, Vol 173, Issue 1

CHRISTINE BRESLIN bresween at comcast.net
Mon Sep 11 20:47:16 UTC 2017


UV light meter
Has anyone used the light meter from Lightmeasure for Wet Collodion? I was wondering how to work it?
Please advise and thanks.
CB




 <http://www.christinebreslinphotography.com/>

 <http://www.christinebreslinphotography.com/>
> On Sep 11, 2017, at 8:00 AM, alt-photo-process-list-request at lists.altphotolist.org wrote:
> 
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> When replying, please edit your Subject line so it is more specific
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> Today's Topics:
> 
>   1. Re:  [Alt-Photo] Wet Plate Collodion Sensivity Filterfor
>      Normal Film (`Richard Knoppow)
>   2. Re:  [Alt-Photo] Wet Plate Collodion Sensivity Filterfor
>      Normal Film (`Richard Knoppow)
>   3. Re:  UV exposure meter: answer from Ian Parker,
>      lightmeasure.com (David Christensen)
>   4. Re:  [Alt-Photo] Wet Plate Collodion Sensivity Filterfor
>      Normal Film (Mustafa Umut Sarac)
>   5.  anyone have cranes platinotype to sell? (bobkiss caribsurf.com)
>   6. Re:  [Alt-Photo] Wet Plate Collodion Sensivity Filterfor
>      Normal Film (`Richard Knoppow)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Sun, 10 Sep 2017 11:58:59 -0700
> From: `Richard Knoppow <dickburk at ix.netcom.com>
> To: alt-photo-process-list at lists.altphotolist.org
> Subject: Re: [Alt-photo] [Alt-Photo] Wet Plate Collodion Sensivity
> 	Filterfor Normal Film
> Message-ID: <9dbee49a-91c7-fb18-4bc6-a116c314d1aa at ix.netcom.com>
> Content-Type: text/plain; charset=windows-1252; format=flowed
> 
> ??? Many types of glass attenuate UV. Some optical cements attenuate 
> UV. If you have a source of UV, any sort of lamp, and something that 
> will glow in UV try putting glass inbetween and see what happens.
> ?? I have an old military contact printer that uses an array of argon 
> glow lamps. If I put paper with brighteners in front of it the paper 
> glows strongly. I had to replace the platen with window glass and it 
> absorbs at least half or more of the UV.
> ?? Another point, the corrections for a lens designed for visible light 
> may be pretty far off for light much beyond its normal band.
> ??? All silver halide emulsions are sensitive to UV, the color 
> sensitizing for longer wavelengths does not affect this.
> 
> On 9/10/2017 7:59 AM, Mustafa Umut Sarac via Alt-photo-process-list wrote:
>> My friend was looking for a uv enlarger and lens, APUG members suggested
>> normal lens is uv transparent . Is it true ?
>> 
>> umut
>> _______________________________________________
>> Alt-photo-process-list | altphotolist.org
>> 
> 
> -- 
> Richard Knoppow
> dickburk at ix.netcom.com
> WB6KBL
> 
> 
> 
> ------------------------------
> 
> Message: 2
> Date: Sun, 10 Sep 2017 12:01:40 -0700
> From: `Richard Knoppow <dickburk at ix.netcom.com>
> To: alt-photo-process-list at lists.altphotolist.org
> Subject: Re: [Alt-photo] [Alt-Photo] Wet Plate Collodion Sensivity
> 	Filterfor Normal Film
> Message-ID: <37926866-e861-2ac1-b901-03dea99eee93 at ix.netcom.com>
> Content-Type: text/plain; charset=windows-1252; format=flowed
> 
> ?? Another thought: Wet plate cameras used lenses of conventional 
> glass. However far into the UV the plate will see the ultimate limit 
> will be established by the lens. To duplicate a wet plate look I don't 
> think much special is required.
> 
> On 9/10/2017 7:59 AM, Mustafa Umut Sarac via Alt-photo-process-list wrote:
>> My friend was looking for a uv enlarger and lens, APUG members suggested
>> normal lens is uv transparent . Is it true ?
>> 
>> umut
>> _______________________________________________
>> Alt-photo-process-list | altphotolist.org
>> 
> 
> -- 
> Richard Knoppow
> dickburk at ix.netcom.com
> WB6KBL
> 
> 
> 
> ------------------------------
> 
> Message: 3
> Date: Sun, 10 Sep 2017 13:04:46 -0600
> From: David Christensen <agitprop at telus.net>
> To: Kees Brandenburg <workshops at polychrome.nl>,
> 	alt-photo-process-list at lists.altphotolist.org
> Subject: Re: [Alt-photo] UV exposure meter: answer from Ian Parker,
> 	lightmeasure.com
> Message-ID: <7154da69-edb6-3f41-882a-62102d35d846 at telus.net>
> Content-Type: text/plain; charset=utf-8; format=flowed
> 
> Thank you for organizing this, Kees - I just placed my order today.
> 
> Kind regards,
> David
> 
> 
> 
> On 2017-09-06 12:04 PM, Kees Brandenburg via Alt-photo-process-list wrote:
>> Hi,
>> 
>> I have collected a list of 29 people that expressed their buying wish in the earlier threads or contacted me off list. I will send this list to Ian with your e-mail addresses. Please let me know ?off list? if you want to be removed from this list. New buyers can contact Ian directly at info.lightmeasure at gmail.com.
>> 
>> Another 11 to go!
>> 
>> Bert Kuijer
>> Bob Kiss
>> Brittonie
>> Catherine Costolo
>> Christine Breslin
>> Clay Harmon
>> Damiano Bianca
>> David Christensen
>> Don Bryant
>> Earl Johnson
>> Felix Martin
>> Gareth Jarvis
>> Greg Brophy
>> Harlan Chapman
>> Jacques Kevers
>> Jean Daubas
>> Jonathon Russell
>> Karen Hymer
>> Keith Fleming
>> Laura Valentino
>> Luciano Teghillo
>> Mark Gould
>> Martin Salowey
>> Mary Donato
>> Ned Lewis
>> Philippe Ayral
>> Rafael Rojas
>> Robert Westmoreland
>> Udo Schnitzbauer
>> 
>> -k
>> _______________________________________________
>> Alt-photo-process-list | altphotolist.org
> 
> 
> 
> ------------------------------
> 
> Message: 4
> Date: Sun, 10 Sep 2017 22:16:56 +0300
> From: Mustafa Umut Sarac <mustafaumutsarac at gmail.com>
> To: "`Richard Knoppow" <dickburk at ix.netcom.com>,  The alternative
> 	photographic processes mailing list
> 	<alt-photo-process-list at lists.altphotolist.org>
> Subject: Re: [Alt-photo] [Alt-Photo] Wet Plate Collodion Sensivity
> 	Filterfor Normal Film
> Message-ID:
> 	<CA+KBABr9NWDWgd6ozwuSiiAR+H2XuADsmAFBrc=DV8UAYGODnw at mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
> 
> I thought old timers and their lenses and the modern platers , they all use
> variety of glasses. I agree with you richard.
> 
> Thank you for Roscoe link , 51 mm x 51mm dichroic filter goes from so 30
> dollars.
> 
> I saw some terrible orthochromatic pictures and some good. I dont have idea
> what will go with me .
> 
> I will use 135mm Leitz Hektor on portraits with Soviet Zorki. I think uv
> focus must be studied with my lens. Good warning.
> 
> Now there remains two questions , why not ordinary bw film but blue
> sensitive film ? Does it make difference ?
> 
> Second question, does wet plate have regular crystals or what ? I used 9
> Leicas and all for their critical area noise.
> I think I can get noise with Hektor  I think leica makes lenses as film as
> friend. They go together very well.
> 
> 
> ------------------------------
> 
> Message: 5
> Date: Sun, 10 Sep 2017 18:59:38 -0400 (EDT)
> From: "bobkiss caribsurf.com" <bobkiss at caribsurf.com>
> To: "alt-photo-process-list at lists.altphotolist.org"
> 	<alt-photo-process-list at lists.altphotolist.org>
> Subject: [Alt-photo] anyone have cranes platinotype to sell?
> Message-ID:
> 	<577825122.278315481.1505084378614.JavaMail.zimbra at caribsurf.com>
> Content-Type: text/plain; charset=utf-8
> 
> DEAR LIST, 
> 
> I know Cranes discontinued Platinotype paper long ago but it works VERY well for uranotype. Anyone have some they might be willing to sell. Prefer larger sheets (20X24, 24X36, etc) but would consider smaller. 
> 
> CHEERS! 
> BOB 
> 
> 
> ------------------------------
> 
> Message: 6
> Date: Sun, 10 Sep 2017 16:27:57 -0700
> From: `Richard Knoppow <dickburk at ix.netcom.com>
> To: Mustafa Umut Sarac <mustafaumutsarac at gmail.com>, The alternative
> 	photographic processes mailing list
> 	<alt-photo-process-list at lists.altphotolist.org>
> Subject: Re: [Alt-photo] [Alt-Photo] Wet Plate Collodion Sensivity
> 	Filterfor Normal Film
> Message-ID: <8b1bc019-fc3f-f558-e60e-5ec77d9b85d6 at ix.netcom.com>
> Content-Type: text/plain; charset=windows-1252; format=flowed
> 
> ??? I don't know what blue sensitive or "color blind" film is 
> available. At one time Kodak Release positive was available for making 
> B&W prints of motion pictures was also available as sheet film for 
> making lantern slides but its long gone. Its emulsion was similar to 
> bromide printing paper. Very slow stuff.
> ?? Blue sensitive or "color blind" emulsions distort the tonal 
> rendition of a scene, especially colors. Lips tend to be rendered black 
> and skin blemishes are exaggerate. Blue sensitive film was available for 
> many years for special purposes including those were accurate gray scale 
> rendition of color was not necessary. "Commercial" films tended to be of 
> the color blind type.
> ??? I am not sure when orthochromatic films were introduced. They are 
> sensitive to green as well as blue, some are sensitive into the yellow 
> range. They have much better rendition of color than color blind films. 
> Ortho films were the standard of the motion picture industry until about 
> the introduction of sound when the change in lighting from arc to 
> incandescent, necessary because the old arc lighting was noisy, required 
> a film more sensitive to the predominantly red output of tungsten 
> lighting. This, in turn, required a complete change in makeup, costume 
> design, the way sets were painted and more. Also, early pan films tended 
> to be lower in contrast and grainier than ortho film so of the time so 
> there was some resistance to using it. Another factor was that early 
> motion picture practice was to develop negatives by inspection, not 
> possible with? pan.
> ?? Ortho was useful for "character" portraits since it tended to 
> exaggerate skin textures, thought desirable for male portraits. So you 
> will find films like Kodak Ortho Portrait listed in the older books. The 
> overall rendition is partly due to the spectral sensitivity and partly 
> due to the overall curve of the films. There are still some ortho films 
> made but I think the choice is limited.
> 
> On 9/10/2017 12:16 PM, Mustafa Umut Sarac wrote:
>> I thought old timers and their lenses and the modern platers , they 
>> all use variety of glasses. I agree with you richard.
>> 
>> Thank you for Roscoe link , 51 mm x 51mm dichroic filter goes from so 
>> 30 dollars.
>> 
>> I saw some terrible orthochromatic pictures and some good. I dont have 
>> idea what will go with me .
>> 
>> I will use 135mm Leitz Hektor on portraits with Soviet Zorki. I think 
>> uv focus must be studied with my lens. Good warning.
>> 
>> Now there remains two questions , why not ordinary bw film but blue 
>> sensitive film ? Does it make difference ?
>> 
>> Second question, does wet plate have regular crystals or what ? I used 
>> 9 Leicas and all for their critical area noise.
>> I think I can get noise with Hektor ?I think leica makes lenses as 
>> film as friend. They go together very well.
>> 
> 
> -- 
> Richard Knoppow
> dickburk at ix.netcom.com
> WB6KBL
> 
> 
> 
> ------------------------------
> 
> Subject: Digest Footer
> 
> _______________________________________________
> Alt-photo-process-list | altphotolist.org
> 
> 
> ------------------------------
> 
> End of Alt-photo-process-list Digest, Vol 173, Issue 1
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