Recent content by auburnxc

I used the Jacquard set to prepare the paper. Great question about leaving it out for longer. I only opened the can because an animal knocked it out of place. I probably would have left it out longer otherwise. I don't yet have a good handle on reciprocity failure with cyanotype paper, but my...

Paint bucket pinhole camera. In-camera cyanotype. ~1 month exposure.

😆Not a horrible idea, actually. I wonder if there would be a market for that.

Great questions. I'll answer as well as I can. First, I never expected I would get an exposure as good as that example, using Sun Art paper. In-camera cyanotype can be difficult, which is why I think very few people use it that way, and everyone has had a really good explanation as to why the...

In-camera cyanotype, 16 oz. beverage can pinhole camera. New cyanotype chemistry (brush application, dried for two days) on 100% cotton deckle paper, 9hr. exposure.

In-camera cyanotype (Sun Art Paper), Yashica-A, wide open, 9 hour exposure, partly cloudy day.

Sun Art Paper/ Traditional cyanotype. About 4.5 inches deep with a "pretty big" pinhole. I haven't measured it but it's much wider than a pin.

My first attempt at pinhole in-camera cyanotype. 12 hour exposure.

I think my ultimate goal is to have success with an in-camera 8X10 pinhole cyanotype. That would be really exciting. I assume I will learn more about reciprocity failure along the way. I'm thankful that the people in this forum have been a wonderful resource so far.

I think I will have to look into New Cyanotype. I really wanted to keep everything as simple as possible, but my pinhole cameras are all at least 4" deep, which I think means I'm shooting at f/280 or so.

I certainly appreciate the help. Math is not my strong suite and I had trouble getting the online exposure calculators to do what I wanted them to.

I knew someone out there would be able to figure this out! Thanks for the quick work. Awesome.

Aidan G, I have started working with in-camera cyanotype this year and I'm very excited about some of my preliminary results. In full, blasting sunshine I can get a decent exposure in about 17 and a half minutes. I'm using mass-produced Sun Art Paper right now, but also considering trying the...

A few more examples.

Here’s one from last week. Probably an 18 or 19 minute exposure. I’ll post some other examples when I unpack my gear.