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Some B&J backs don’t fit. I never found one that did despite others saying it would. I ended up making my own.

I tried using my 240mm APO Symmar for a flat subject fairly close and saw a donut shape in the focus, so fuzzy corners fuzzy center and sharp middle area. I took the Symmar out of the shutter and...

My video and Radeka's book follow the exact same instructions. It's easy to do, and only takes a little bit of effort with trial and error.

Just make a mask and then make a print. If you don’t like the results then don’t make more.

The Comparon may be an M42 size

The 150mm should have a 50mm thread mount. I think I had to open the hole on my 39mm DeVere board on my mini lathe.

I don’t know your budget, but B&H has the Godox SL60 on sale. It’s an led continuous light and takes Bowen’s S mount lighting modifiers. The more powerful versions are on sale too if you need...

I have a ton of trays but I don’t recall buying a single one. I have a lot of the red, white, and gray Patterson trays that I never use, and some 11x14 white(ish) Cesco trays, but my favorite are...

Papers for use with an activator/stabilizer processor have a developer incorporated in the emulsion. Kodak RC papers did, Ilford does not.

As far as I’m aware he still uses 8x10 chromes from a Sinar F 8x10 camera.

The manuals for DeVere enlargers can be hard to find and expensive, so I made a video showing where the adjustment points are and how to align the 5108, 507, 604, and 203 machines. Hope this helps...

I don’t know about the sheet film version, but the 35mm Catlabs film (320) is just repackaged Kodak Double X 5222 movie film, same as Cinestill.

I did one in Breckinridge, CO. Funded by the town. They wanted community minded projects that lasted 2-8 weeks. Mine was 2 weeks. It didn’t pay, but they provided an apartment, studio space, and...

The blue and green X-ray sensitometers will be useful for comparing different films, but may not be full spectrum enough for contrast index, accurate film speed, etc. And they may not have a means...

New video in the series, Contrast Index: https://youtu.be/TwTymRBedz4

The 1883 eruption of Krakatoa has the distinction of being the loudest eruption heard over the greatest distance, as far as Madagascar. My kid is a volcano nut. I've heard this fact more times than...

That video is mine. I also have two videos following along with the Kodak Basic Sensitometry Workbook. Part 1 ( Exposing the step tablet and drawing the curves) is here:...

It honestly doesn’t matter which one. Galleries don’t care about the schools, just the work. Grad schools don’t care, just the work. Both schools have competent faculty and good facilities, so she...

I had to replace the dial bulb when I purchased my enlarger 12 years ago. It’s worked fine since. It was a common appliance bulb if I remember right.

I have anti Newton glass on the top part of mine. The nice thing about an authentic carrier, as opposed to a homemade option, is the way you can replace the 8x10 glass with smaller negative holders.

I got my copy at Half Priced Books for around $6.

If you are starting out in color printing I would recommend getting Henry Horenstein’s book on the subject. It will answer most of your questions and be a good reference as you get your workflow...

Ebay's shipping is a best guess based on similar items to the zip code of your buyer. You can usually alter the item weight and package dimensions and get a more accurate estimate, but it isn't...

I made one a few years ago from plans on Bostick & Sullivan’s site. I don’t know if they are still there. If I remember right it was a sheet of 1/4 inch rubber, a couple layers of felt and then 1/4...

Would a lithium grease be appropriate for the focus screw?

That’s what I have, but the Manfrotto version.

I have one from Manfrotto. It uses sliding bits to center the nodal point, then has detents to set up precision rotation amount for different focal length lenses. It’s designed for smaller cameras...

Anything you put in front of your light will reduce the output. If you want to concentrate the light more than just a snoot then a fresnel, as mentioned already, will work. You can also get an...

If it’s anything like my 8x10 Gravity Works print washer, there is a hose on one side that connects to the inlet water, and two hoses on the opposite end. The small hose has a clamp to force the...

I have Exposure X4, formerly Alienskin, and it is a near direct replacement to Lightroom, which I also have. X5 recently came out. It functions as a stand alone software or as a plugin to Lightroom...

CR-39 plastic, which is most cheap sunglasses and eyeglasses, as well as resin filters by Lee and Hitech do not block UV unless specifically coated to do so. Polycarbonate blocks uv without special...

I see them on eBay all the time for around $25, so keep your eyes open. The #10 will work, but it is extremely dark. 13 is much easier to work under.

I saw the can under my house this morning but didn’t look to see who made it. I doubt I’ll make a video about it, but I won’t say never.

Somewhere I have a quart of a product sample sent to me of a liquid medium you are supposed to spray on a glass surface that has a ground glass mixture in it to create frosted glass similar to the...

I use these rollers for cleaning prints and plexi when framing too.

I dated mine when I mixed it. 01/03/20 stored in a glass gallon jug. I used some today with no issue, the bottle is at least 3/4 full.

When I first mixed my new batch I thought I did something wrong. As you said, though, it prints fine.

If you are positive it isn’t just ruined paper, do a safelight test to rule that out.

I would aim for a time of 1/2 second. That should be within a very controllable and repeatable time without reciprocity failure.

You guys should read his original post again. He is not looking for a densitometer to read film density. He is looking for a sensitometer to expose film density. Completely different machine and...