Support our Sponsors, they keep FADU free: AG Photographic The Imaging Warehouse Process Supplies RH Designs Second-hand Darkroom Supplies |
> Cyanotype Chemicals |
*** Click here for the FADU 2015/2014 Yearbooks *** |
|
Thread Tools | Search this Thread | Display Modes |
#31
|
|||
|
|||
Alex I imagine that what may be possible is an enlargement of a 35mm or 120 neg onto the likes of X ray or litho film creating a positive then a contact print of that 8x10 film positive onto another sheet of Xray to create a large neg for use with cyanotype paper
Does this sound right? The cyanotype website which was given as a link gives fairly detailed instructions for the production of such a negative but yes it involves a clear transparency negative made from a scan Mike |
#32
|
|||
|
|||
7x5, Alex. I've done lots of them. Nice size for both blueprints and contacts.
|
#33
|
|||
|
|||
I might try to find a 7x5 back for my Horseman camera. I know they made a 10x8, and probably also a 7x5, but they don’t appear for sale very often.
I have made 4x5 inter-positives from enlarged 35mm negatives, from which a 4x5 negative can, in turn, be made. It’s quite time-consuming. It might be worth it, however, to go to 5x7, or 8x10, the cost being the film only. Thinking about it, I could actually enlarge 4x5 negatives, which would retain the quality. The original images would have to be good to justify the cost of two large sheets per image. I’m off to investigate suitable film, as I haven’t found the alternative route very satisfactory. Alex Sent from my iPhone using Tapatalk Pro |
#34
|
|||
|
|||
I have found some more info that might be useful.
First a post on the Pinterest site. Here someone has used an enlarger and a half frame negative, but no details about the f-stop used and height of the head. But they seemed to have used a UV bulb of some sort in the enlarger to get their cyanotype print. The only slight downside, is that the exposure took three hours(!) but at least it shows that it is possible. https://www.pinterest.com/pin/522910206728937941/ Secondly, here is another Pinterest page, with some ideas on. I love the idea and look of the botanical t-shirt, but I think that it might be a project for the summer, as I think a lot more sunshine will be needed for the larger area of material: https://www.pinterest.com/pin/194358540158648024/ Terry S |
#35
|
||||
|
||||
It's been a while since I popped in here. My main reason was to see what folk had to say about cyanotypes, as I've been doing quite a few recently.
I am definitely no expert, but here's a few things I've learned/noted:
Examples: The first is from a digital file printed on to transparency film. The second is from an 8x10 film negative. The third is a traditional photogram, leaves placed on the paper in a contact frame. I love the unpredictability of the tone and colour of the final image. These were all made with different mixes (ostensibly the same though) and exposed either in weak sunlight or with the UV garden light. Developed in plain water (1) or acidified water (2 & 3). All treated with weak peroxide after first wash. Still some way to go to explore more options, something to do during lockdown anyway!
__________________
Roy ------------ The Golden Fleece - Home of The Creative Camera Archive and Real Photographs and |
#36
|
|||
|
|||
They look pretty good Roy. Thanks for these and the post
Mike |
#37
|
|||
|
|||
Thanks for showing these, Roy. They are really good. I have been doing some experiments myself using paper negatives. So far, I have made some reasonable prints, but they take hours with the Phillips facial tan lamp. I’ve been using MG IV RC paper. I’ve bought some single weight paper to see if it’s a bit more transparent. I’m hoping to get the exposure down to 30mins, but the new paper is FB, so the process time to produce a paper negative will be longer. I will try acidifying the developing water next time to see if it improves results.
Alex. Sent from my iPhone using Tapatalk Pro |
#38
|
||||
|
||||
Hi Roy,
Thanks for posting, images look great, just hope when I get to use my kit that mine come out as good as yours. Your pointers will be a great help to me, thanks. Think I'll look into the 50 watt flood light, sounds interesting. Ian
__________________
Learn to live, live to learn |
#39
|
||||
|
||||
Yes, very nice and inspiring results, Roy.
__________________
MartyNL “Reaching a creative state of mind thru positive action is considered preferable to waiting for inspiration.” - Minor White, 1950 |
#40
|
|||
|
|||
Well, I must say that this thread has caught members attention, at 1,321views and counting.
I am just typing up my longer post, with pictures, to show what I have found out recently, whilst experimenting with it all. I have some small, but interesting points, I hope, that will be useful to others who are or who are thinking of dipping their toes, to try out the cyanotype process. I should be reporting back tomorrow. Terry S |
Support our Sponsors, they keep FADU free: AG Photographic The Imaging Warehouse Process Supplies RH Designs Second-hand Darkroom Supplies |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
SOLD OUT - Online Solar Landscapes Cyanotype printmaking course | Terry S | Photography in general | 3 | 28th September 2020 08:26 PM |
Old chemicals | Rob Archer | Chemical formulae | 14 | 22nd November 2019 10:59 PM |
Cyanotype Calendar 2011 (bit of a novelty piece) | Akki14 | Members Announcements | 6 | 23rd October 2010 08:41 AM |
U.K Platinum/Kallitype/Cyanotype Printing Workshops | DavidC | Workshop News | 0 | 2nd July 2010 07:08 AM |
Cyanotype Cat | Dave miller | Alternate printing processes | 24 | 15th August 2009 05:45 PM |