Re: Paper negatives (Re: Tricolor gum, order of layers)

[Loris Medici <mail@loris.medici.name>]

Ok, thanks for the clarification - it's your vision for that particular
image then... I hope that wasn't taken by you as being too harsh or unkind
-> it wasn't meant to be so -> it was an honest - maybe plainspoken -
subjective view...

Regards and thanks much for sharing, I love to see works of other people
-> (to all) please share more of your work.

Regards,
Loris.


6 Ekim 2008, Pazartesi, 9:33 pm tarihinde, Guido Ceuppens yazmış:
> Every now and then I want to do something other than the traditional
> gum and realy splash color around.... The image is first overdone in
> PS and then printed as "colorfull" as possible. I think casein can
> reproduce the same subtle tones as gum but sometimes that is not wat I
> want!
>
> Guido
>
> 2008/10/6 Loris Medici <mail@loris.medici.name>:
>> Thanks much, I like the cyanotype very much. The gum also is lovely /
>> very
>> sentimental (both subject + technique). Can't say the same thing about
>> the
>> casein print though - it looks like a screenprint; very opaque, looks
>> like
>> made with spot channels, poor tonality... Probably because of acrylic
>> paint + hazy casein...??? Is it that image particularty or a general
>> property of all acrylic paint + casein colloid images?
>>
>> Thanks for sharing these. Take your time about the exposure test, I'm
>> sure
>> it will be helpful to us if you can make it...
>>
>> Regards,
>> Loris.
>>
>>
>> 6 Ekim 2008, Pazartesi, 7:56 pm tarihinde, Guido Ceuppens yazmış:
>>> I will try an exposure comparision between oiled/unoiled paper later
>>> and keep you informed. My light source is a Philips Suntan unit with
>>> 10 TLK40W/10R lamps, build-in fan and timer, bought cheaply
>>> second-hand in a garage sale.
>>>
>>> Example of a cyanotype print with oiled paper:
>>> http://home.versateladsl.be/vt6100419/cyanotype
>>>
>>> a gumprint:
>>> http://home.versateladsl.be/vt6100419/gum
>>>
>>> and a caseine print:
>>> http://home.versateladsl.be/vt6100419/cas
>>>
>>> Guido
>>>
>>>
>>> 2008/10/6 Loris Medici <mail@loris.medici.name>:
>>>> I'm really curious about your exposure times with unoiled negatives,
>>>> thanks for taking the trouble...
>>>>
>>>> BTW, what light source do you use? Those cyanotype exposures are
>>>> pretty
>>>> short, I never managed to get the exposure below 8-9 minutes with the
>>>> most
>>>> transparent media I have on hands. (Ultrafine, w/ Pictorico it's a
>>>> little
>>>> more...)
>>>>
>>>> Regards,
>>>> Loris.
>>>>
>>>>
>>>> 6 Ekim 2008, Pazartesi, 2:48 pm tarihinde, Guido Ceuppens yazmış:
>>>>> Loris,
>>>>> I can only report on my own findings, other people may work
>>>>> differently:
>>>>> - my cyanotype exposure with an Agfa Scanjet negative : 2 min 30 sec
>>>>> - my cyanotype exposure with an Epson Photo Quality Paper negative,
>>>>> oiled : 7 mins
>>>>> - my gum exposure with an Epson Photo Quality Paper negative, oiled
>>>>> :
>>>>> 2 mins to 3:30 mins
>>>>> - my caseine exposure with an Epson Photo Quality Paper negative,
>>>>> oiled : 40 to 60 secs
>>>>> I never tried exposure with un-oiled Epson Paper. Later tonight I
>>>>> will
>>>>> upload an example.
>>>>>
>>>>> Greetings,
>>>>> Guido
>>>>>
>>>>>
>>>>> 2008/10/6 Loris Medici <mail@loris.medici.name>:
>>>>>> Guido have you compared the exposure time with un-oiled negatives?
>>>>>> Have
>>>>>> you noticed any mottling and/or unevenness?
>>>>>>
>>>>>> Your and Katharine's experience definitely contradicts with what
>>>>>> was
>>>>>> reported by Judy and/or the actual writer(s) of the article in Post
>>>>>> Factory Photography - causing confusion on my part.
>>>>>>
>>>>>> I have only used baby oil (liquid paraffine) once, and the paper
>>>>>> was
>>>>>> different few days later... Maybe there's a huge difference between
>>>>>> very
>>>>>> little and too much!?
>>>>>>
>>>>>> Regards,
>>>>>> Loris.
>>>>>>
>>>>>>
>>>>>> 6 Ekim 2008, Pazartesi, 1:13 pm tarihinde, Guido Ceuppens yazmış:
>>>>>>> ...
>>>>>>> I completely agree with Katharine's post: I no longer bother with
>>>>>>> the
>>>>>>> mylar separation sheets and have used oiled negs after approx. 2
>>>>>>> years
>>>>>>> with the same exposure times, the paper feels only slightly
>>>>>>> greasy.
>>>>
>>>>
>>>
>>
>>
>>
>