[Alt-photo] List for meters

Brittonie ___ brittonie at gmail.com
Wed Sep 6 16:25:36 UTC 2017


yes please publish list (please put me on it)

I never see my replies and am unsure if these are going through.

On Wed, Sep 6, 2017 at 4:23 PM, Karen hymer via Alt-photo-process-list <
alt-photo-process-list at lists.altphotolist.org> wrote:

> Thank you for compiling the  list of buyers. Would you be so kind as to
> publish it here before sending it on so each of us can be sure we are  n it?
> Thank you
>
> Karen Hymer
> Sent from my iPhone
>  📷🛶🌵⚽️
>
> > On Sep 6, 2017, at 8:08 AM, alt-photo-process-list-
> request at lists.altphotolist.org wrote:
> >
> > Send Alt-photo-process-list mailing list submissions to
> >    alt-photo-process-list at lists.altphotolist.org
> >
> > To subscribe or unsubscribe via the World Wide Web, visit
> >    https://mailman-mail5.webfaction.com/listinfo/alt-photo-process-list
> > or, via email, send a message with subject or body 'help' to
> >    alt-photo-process-list-request at lists.altphotolist.org
> >
> > You can reach the person managing the list at
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> >
> > When replying, please edit your Subject line so it is more specific
> > than "Re: Contents of Alt-photo-process-list digest..."
> >
> >
> > Today's Topics:
> >
> >   1. Re:  Alt-photo-process-list Digest, Vol 172, Issue 12
> >      (Greg Brophy)
> >   2. Re:  UV exposure meter: answer from Ian Parker,
> >      lightmeasure.com (CatherineCostolo)
> >   3. Re:  UV exposure meter: answer from Ian Parker,
> >      lightmeasure.com (Don Bryant)
> >   4. Re:  Exposure Unit (Greg Brophy)
> >
> >
> > ----------------------------------------------------------------------
> >
> > Message: 1
> > Date: Wed, 6 Sep 2017 09:17:42 -0400
> > From: Greg Brophy <greg at gregbrophy.com>
> > To: alt-photo-process-list at lists.altphotolist.org
> > Subject: Re: [Alt-photo] Alt-photo-process-list Digest, Vol 172, Issue
> >    12
> > Message-ID: <D4A64FC2-8526-4734-A953-79A458F2210D at gregbrophy.com>
> > Content-Type: text/plain;    charset=us-ascii
> >
> > Hi Kees,
> >
> > Thanks for that. That may have been true with the sensor he used. Most
> UV sensors out there are do not read UV light, they make a calculation
> based on total light, I think there are new ones that only read UV light
> and reach their peak at 355n. I will probably keep trying to make it out of
> sheer curiosity, but I will also buy one as well from Ian since the whole
> reason I started this was because I wanted one.
> >
> > Greg
> >
> >> On Sep 6, 2017, at 8:00 AM, alt-photo-process-list-
> request at lists.altphotolist.org wrote:
> >>
> >> Send Alt-photo-process-list mailing list submissions to
> >>   alt-photo-process-list at lists.altphotolist.org
> >>
> >> To subscribe or unsubscribe via the World Wide Web, visit
> >>   https://mailman-mail5.webfaction.com/listinfo/alt-photo-process-list
> >> or, via email, send a message with subject or body 'help' to
> >>   alt-photo-process-list-request at lists.altphotolist.org
> >>
> >> You can reach the person managing the list at
> >>   alt-photo-process-list-owner at lists.altphotolist.org
> >>
> >> When replying, please edit your Subject line so it is more specific
> >> than "Re: Contents of Alt-photo-process-list digest..."
> >>
> >>
> >> Today's Topics:
> >>
> >>  1. Re:  Exposure Unit (Kees Brandenburg)
> >>  2.  UV exposure meter: answer from Ian Parker,    lightmeasure.com
> >>     (Kees Brandenburg)
> >>  3. Re:  UV exposure meter: answer from Ian Parker,
> >>     lightmeasure.com (Philippe Ayral)
> >>
> >>
> >> ----------------------------------------------------------------------
> >>
> >> Message: 1
> >> Date: Wed, 6 Sep 2017 09:10:13 +0200
> >> From: Kees Brandenburg <workshops at polychrome.nl>
> >> To: alt-photo-process-list
> >>   <alt-photo-process-list at lists.altphotolist.org>
> >> Subject: Re: [Alt-photo] Exposure Unit
> >> Message-ID: <F4D523E8-7E87-445D-8E28-8418776D04A1 at polychrome.nl>
> >> Content-Type: text/plain; charset=utf-8
> >>
> >> The lightmeasure meters use a set of high & low pass UV filters above
> the sensor to narrow the spectrum.
> >>
> >> -k
> >>
> >>
> >
> >
> >
> > ------------------------------
> >
> > Message: 2
> > Date: Wed, 6 Sep 2017 10:33:28 -0400
> > From: CatherineCostolo <mikes1mom at comcast.net>
> > To: Philippe Ayral <payral at gmail.com>,
> >    alt-photo-process-list at lists.altphotolist.org
> > Subject: Re: [Alt-photo] UV exposure meter: answer from Ian Parker,
> >    lightmeasure.com
> > Message-ID: <5DF5AC6E-D785-4C15-84F8-8E75D3939086 at comcast.net>
> > Content-Type: text/plain;    charset=utf-8
> >
> > Thanks, Kees!
> > Catherine
> >
> > Catherine Costolo
> > Independent Beauty Consultant with Mary Kay Cosmetics (770)405-8977
> > (404)291-2181 (cell)
> > Visit my website 24/7 www.marykay.com/ccostolo
> > Happiness is like jam.....you can't spread it around without getting a
> little on yourself.
> >
> >
> >> On Sep 6, 2017, at 4:56 AM, Philippe Ayral via Alt-photo-process-list <
> alt-photo-process-list at lists.altphotolist.org> wrote:
> >>
> >> I confirm by mail my wish to buy that meter directly to Ian.
> >> Thanks for making that possible.
> >>
> >> *Philippe Ayral* *Photographie*
> >> 52, rue de Vallard - 74240 Gaillard
> >> T?l: 04 50 39 79 81
> >> www.payral.fr
> >>
> >> 2017-09-06 9:42 GMT+02:00 Kees Brandenburg via Alt-photo-process-list <
> >> alt-photo-process-list at lists.altphotolist.org>:
> >>
> >>> Dear list,
> >>>
> >>> This week I have contacted Ian Parker and asked him if he was willing
> to:
> >>>
> >>> ? produce and ship a number of pre-ordered meters
> >>> ? open source the design
> >>>
> >>> Here is Ian?s answer and it?s good news!
> >>>
> >>> I will now collect the list of interested buyers form the thread(s)
> here
> >>> and send them to Ian. New buyers can contact Ian directly:
> >>> info.lightmeasure at gmail.com. The new meters will be long wavelenth
> with
> >>> external sensor only and the prize will be $299. Production lead will
> be
> >>> 4-6 weeks.
> >>>
> >>> Kees
> >>>
> >>> ================
> >>>
> >>> Hello Kees,
> >>>
> >>> How very nice to hear from you and thank you for the explanation. I
> >>> actually suspected there might be an active thread on a list somewhere
> >>> since I have, indeed, received several recent inquiries about the
> meters.
> >>>
> >>> You asked a couple of question in your email:
> >>> 1) Would I consider open-sourcing the design? There are a few
> challenging
> >>> technical steps in building the meters, which might make this approach
> >>> unfeasible for some artists. The hardest is fabricating the UV filter
> with
> >>> the correct characteristics so the meter will measure only the range
> of UV
> >>> wavelengths that our plates/papers/materials respond to but not other
> >>> wavelengths (including visible light). This is pretty tricky to do
> without
> >>> the proper tools. I had to custom design a combination of 4 filters to
> >>> achieve this and it required access to specialized optical instruments
> to
> >>> measure their optical transmission - tools which most
> artists/photographers
> >>> would not have ready access to.
> >>>
> >>> 2) Would I consider a custom order for more meters? The answer to this
> is
> >>> probably yes - assuming I could get a commitment from a sufficient
> number
> >>> of customers, and with a few caveats:
> >>> i) Since I have significantly depleted my existing inventory I would
> need
> >>> to restock on many components, and would therefore need a commitment
> for at
> >>> least 40 orders to make this viable.
> >>> ii) Also I will need to increase the price (!) - sorry about that but
> the
> >>> previous price point of $220 really doesn't work without volume of
> scale
> >>> (which is the reason that we closed the store in the first place). I'll
> >>> need to set the price at $299. I realize this might be a problem for
> many
> >>> people, but it's an unfortunate fact. Again, sorry.
> >>> iii) Since I will need to reorder much of the inventory there will be
> an
> >>> inevitable delay of 4-6 weeks before I could ship. One of the major
> >>> components has a 4 week lead time.
> >>> iv) To keep things manageable I'll probably only offer the PPM-2 long
> >>> wavelength version (with the external sensor). This was, by far, our
> most
> >>> popular version, and I expect that most people would order this anyway.
> >>>
> >>> So how to proceed? Might I suggest that you circulate this to the
> >>> alt-list, and ask people to contact me at the following email address
> if
> >>> interested? If I receive enough responses I'll reopen the store and
> start
> >>> accepting orders.
> >>>
> >>> contact at:  info.lightmeasure at gmail.com.
> >>>
> >>> Thanks Kees, it was nice talking with you again.
> >>>
> >>> Best regards,
> >>> Ian
> >>>
> >>> www.LightMeasure.com
> >>> _______________________________________________
> >>> Alt-photo-process-list | altphotolist.org
> >>>
> >> _______________________________________________
> >> Alt-photo-process-list | altphotolist.org
> >
> >
> >
> > ------------------------------
> >
> > Message: 3
> > Date: Wed, 6 Sep 2017 11:05:25 -0400
> > From: "Don Bryant" <donsbryant at gmail.com>
> > 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: <89DA67EE66234CE186D475C652A4403D at FireBreather>
> > Content-Type: text/plain;    charset="us-ascii"
> >
> > Thanks Kees. I'm pleasantly surprised by this turn of events.
> >
> > Don Bryant
> >
> > -----Original Message-----
> > From: Alt-photo-process-list
> > [mailto:alt-photo-process-list-bounces at lists.altphotolist.org] On
> Behalf Of
> > Kees Brandenburg via Alt-photo-process-list
> > Sent: Wednesday, September 06, 2017 3:42 AM
> > To: alt-photo-process-list
> > Subject: [Alt-photo] UV exposure meter: answer from Ian
> > Parker,lightmeasure.com
> >
> > Dear list,
> >
> > This week I have contacted Ian Parker and asked him if he was willing to:
> >
> > . produce and ship a number of pre-ordered meters
> > . open source the design
> >
> > Here is Ian's answer and it's good news!
> >
> > I will now collect the list of interested buyers form the thread(s) here
> and
> > send them to Ian. New buyers can contact Ian directly:
> > info.lightmeasure at gmail.com. The new meters will be long wavelenth with
> > external sensor only and the prize will be $299. Production lead will be
> 4-6
> > weeks.
> >
> > Kees
> >
> > ================
> >
> > Hello Kees,
> >
> > How very nice to hear from you and thank you for the explanation. I
> actually
> > suspected there might be an active thread on a list somewhere since I
> have,
> > indeed, received several recent inquiries about the meters.
> >
> > You asked a couple of question in your email:
> > 1) Would I consider open-sourcing the design? There are a few challenging
> > technical steps in building the meters, which might make this approach
> > unfeasible for some artists. The hardest is fabricating the UV filter
> with
> > the correct characteristics so the meter will measure only the range of
> UV
> > wavelengths that our plates/papers/materials respond to but not other
> > wavelengths (including visible light). This is pretty tricky to do
> without
> > the proper tools. I had to custom design a combination of 4 filters to
> > achieve this and it required access to specialized optical instruments to
> > measure their optical transmission - tools which most
> artists/photographers
> > would not have ready access to.
> >
> > 2) Would I consider a custom order for more meters? The answer to this is
> > probably yes - assuming I could get a commitment from a sufficient
> number of
> > customers, and with a few caveats:
> > i) Since I have significantly depleted my existing inventory I would
> need to
> > restock on many components, and would therefore need a commitment for at
> > least 40 orders to make this viable.
> > ii) Also I will need to increase the price (!) - sorry about that but the
> > previous price point of $220 really doesn't work without volume of scale
> > (which is the reason that we closed the store in the first place). I'll
> need
> > to set the price at $299. I realize this might be a problem for many
> people,
> > but it's an unfortunate fact. Again, sorry.
> > iii) Since I will need to reorder much of the inventory there will be an
> > inevitable delay of 4-6 weeks before I could ship. One of the major
> > components has a 4 week lead time.
> > iv) To keep things manageable I'll probably only offer the PPM-2 long
> > wavelength version (with the external sensor). This was, by far, our most
> > popular version, and I expect that most people would order this anyway.
> >
> > So how to proceed? Might I suggest that you circulate this to the
> alt-list,
> > and ask people to contact me at the following email address if
> interested?
> > If I receive enough responses I'll reopen the store and start accepting
> > orders.
> >
> > contact at:  info.lightmeasure at gmail.com.
> >
> > Thanks Kees, it was nice talking with you again.
> >
> > Best regards,
> > Ian
> >
> > www.LightMeasure.com
> > _______________________________________________
> > Alt-photo-process-list | altphotolist.org
> >
> >
> >
> > ------------------------------
> >
> > Message: 4
> > Date: Wed, 6 Sep 2017 11:08:09 -0400
> > From: Greg Brophy <greg at gregbrophy.com>
> > To: don at sweetlegal.co.nz
> > Cc: alt-photo-process-list at lists.altphotolist.org
> > Subject: Re: [Alt-photo] Exposure Unit
> > Message-ID: <16949365-75FB-4E83-AA45-CCB910A4A1B7 at gregbrophy.com>
> > Content-Type: text/plain;    charset=utf-8
> >
> > This is the UV sensor I was thinking of using and the specs.
> http://www.vishay.com/docs/84277/veml6070.pdf Range of spectral
> sensitivity 320nm to 410nm Peak sensitivity wavelength 355nm
> >
> >> On Sep 5, 2017, at 9:31 PM, don at sweetlegal.co.nz wrote:
> >>
> >> Hi Greg
> >>
> >> If you are reading the UV sensor values at regular intervals into an
> Arduino, this sketch may help.  It is said to produce a running average of
> the values.  Displaying that and the elapsed time would give you a quick
> way of calculating the dose.
> >>
> >> https://www.arduino.cc/en/Tutorial/Smoothing
> >>
> >> Don Sweet
> >>
> >>> On 2017-09-06 02:04, Greg Brophy via Alt-photo-process-list wrote:
> >>> Hi Don and Larry. Thanks for the interest. I am using Arduino with the
> >>> ML8511 sensor and I need to figure out how to code for dose.
> >>> ?Radiant exposure (H), is dose, and is described in joules (unit of
> >>> energy) per square meter (J m2) or joules per square centimeter (J
> >>> cm2). Note that a watt is a joule per second thus the dose rate (W
> >>> cm2) multiplied by the exposure duration (seconds) equals dose (J
> >>> cm2).?
> >>> So basically I need to create a timer, then multiply that with the W
> cm2.
> >>> I just found out the sensor I am using is no longer available and will
> >>> have to find a new one.
> >>> I am using the basic code that was provided with the sensor.
> >>> Thanks,
> >>> Greg
> >>>> On Sep 4, 2017, at 6:18 PM, Larry Ogrodnek <ogrodnek at gmail.com>
> wrote:
> >>>> Hey Greg, that sounds really great!  Would love to hear about it when
> you are ready to share.
> >>>> I have some C firmware experience and may be able to help depending
> on what you need.
> >>>> I used to make/sell some LED nametag kits (
> http://analogmachines.com/p/nametag/) and have some experience in
> basic/amateur hardware/software work...
> >>>> thanks,
> >>>> larry
> >>>>> On Mon, Sep 4, 2017 at 9:49 AM, Greg Brophy via
> Alt-photo-process-list <alt-photo-process-list at lists.altphotolist.org>
> wrote:
> >>>>> I also wanted to order one of the light measure UV meters and was
> disappointed that it was discontinued. I went on Facebook and some people
> pointed me in the right direction for creating my own which I am now in the
> process of doing. I have a prototype I am working on and am just trying to
> fix a few kinks in the code, but when done I will share how to do it or if
> people don't want to make it, I can make it as well. I also plan on making
> a few improvements like touch screens. The best part is that most of the
> parts are open source and what isn't can easily be printed with a 3-D
> printer. I will send out updates as I get closer. If anybody know how to
> program in C++ and wants to help, let me know.
> >>>>> Greg
> >>>>> _______________________________________________
> >>>>> Alt-photo-process-list | altphotolist.org
> >>> _______________________________________________
> >>> Alt-photo-process-list | altphotolist.org
> >>
> >
> >
> > ------------------------------
> >
> > Subject: Digest Footer
> >
> > _______________________________________________
> > Alt-photo-process-list | altphotolist.org
> >
> >
> > ------------------------------
> >
> > End of Alt-photo-process-list Digest, Vol 172, Issue 13
> > *******************************************************
> _______________________________________________
> Alt-photo-process-list | altphotolist.org
>



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Art
Photography
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