Low contrast developing for high contrast scenes: D-23

  Source: D-23 One of the facets about analog photography that I really enjoy is the huge amount of ways to change or influence the look of an image.   Developing chemistry is such a huge topic and I’ve barely scratched the surface on this. I’ve been reading about two bath processing that supposedly reduces contrast and holds shadow tones and highlights well.  Here’s a few reasons why it might be useful: Low contrast negatives scan very well Low contrast negativesRead more

Comparison of 35mm and Medium format negative sizes

http://photoethnography.com/ClassicCameras/filmformats.html I found this page while looking for a list of which medium format cameras shoot 6×7 … not exactly what I was originally looking for but wanted to make a note since this is useful information.  Photoethnography.com has a lot of other interesting stuff worth checking out. 120 film: Kodak numbered all of its film types, starting with 100 (I think). So 120 roll film is actually a rather early format. It was used in the Kodak Brownie cameras. TheRead more

MTF – The English Translation

This post contains absolutely no mathematics. Explaining MTF without math is sort of like doing a high-wire act without a net. It’s dangerous, but for any number of reasons is more likely to keep the audience interested. Why Am I Doing This Again? I wrote an article on reading MTF charts several years ago. It […] Source: MTF – The English TranslationRead more

Developing 120-Year-Old Photos found in a Time Capsule — Mathieu Stern

Recently I picked up this thread about finding some 120 year old glass plates in a time capsule and watched the video on YouTube which was pretty fascinating and worth the watch them printed with Cyanotype.  Honestly I’m pretty amazed that glass plate negatives from 120 years ago could print so well, and not at all surprised the that image was of the family pet, but pretty impressed with the craft employed by the photographer… getting correct exposure and compositionRead more

Flash Bulbs – The Lowdown! – The Film Photography Project

Many of the older flash bulbs had more power than electronic camera mounted flash units and some argue better quality of light.  I’ve not used them much, but am really curious. Here’s an article on the Film Photography Project page that I read recently after a customer asked me about where to find flash bulbs. The Lowdown on Flash Bulbs Guest blog by Steve Ringrose Editor’s Notes: Millions of vintage cameras (especially the Kodak Instamatic cameras here in the USRead more

F-stop, T-stops and even H-stops

I’ve been reading about the differences between T-stops which are based on the measured amount of light as opposed to a calculated f/stop, and I’ve found this wikipedia page to be super useful.  Wikipedia.org page on F-numbers Check it out as it has lots of great information including all the math formulas and other useful information  – and btw   T-stops take in account the efficiency of the lens and can be different from a calculated f/stop because most lesses only transmitRead more

Fantastic article on panoramic cameras at Only Images

 Article on Panoramic cameras and the Zenit Horizont KMZ Because I’m now importing Zenit Lenses and cameras I’ve been reading up on their older products like the Horizon panoramic camera.  This article about panoramic cameras by Walter Lungov on his website Apenasimagens.com is truly fantastic!  Make sure to check out his other articles too!  I know I’ll be reading through them all.Read more

4D Printing Already? | HP® Tech at Work

What is 4D printing? The 4th Dimension in printing is time or change over time – objects that can be printed in 3D that change properties over time or in reaction to external stimuli. Wow! Think of the possibilities! The link below has some details on what HP is doing with this tech. Source: 4D Printing Already? | HP® Tech at WorkRead more

“A guide to shooting expired film” from PopPhoto

Today I received in the mail a Graflex Super D with “automatic diaphragm”, and more relevant to this article – a graflex pack film holder #523.    I have never seen one of these things before – it’s a metal box that has 12 or 16 sheets of film inside that allows the photographer to advance to the next sheet by pulling on a tab. The tab is attached to the far side of the sheet and pulls it aroundRead more