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A bit of history and an incredibly worked-through document of the state-of-the-art at Kodak in 1946:

https://archive.org/details/KodakReferenceHandbook


// Wally

Congratulations, Mark!

My lenswork issue 123 arrived today, and features Mark Sawyer and Tinkerbell.

Very nicely printed, as usual for Lenswork.

This fellow has built a plexiglass box with plumbing and circuitry that will process up to 5x7 film automatically:
http://silver-image.blogspot.com/2015/12/der-filmomat.html

A very impressive...

A new use for graphene is being explored: It's use as an extremely sensitive photon detector:

http://phys.org/news/2015-08-ultimate-detector.html

Sadly, the confluence of this new technology...

I second that. I found out the hard way.

Thanks for coming back!

I just got an email from LensWork Publishing announcing that LensWork #108 would be available at "select independent bookstores".

I guess the big booksellers squeeze too hard. I can't wait to see...

I think I'd hunker down and get a child's perspective on this scene.

It's pretty contrasty, with the zone six terrain in the foreground puncuated by the zone two or zone three shoots sticking up...

Torrey pines is an excellent idea. I've wanted to explore that boulder-filled gap you can see on the right as you go south on N. Torrey Pines Rd. about 3/4 mile after the state park entrance, and...

Welcome to the club, James. I'm in Point Loma/OB.

Who'd you send the camera off to for the CLA?

There's some good resources on line for speed graphis cameras. Check out http://www.graflex.org/

I use this same dilution and quantity in a beseler drum for 5x7 HP5. Works great!

It looks like Andrew's 'composing hands' are a good candidate for a hand sign.

It looks almost like the light is coming up from out of the surface of the bartop. Regardless, If they used LED lighting, which often use pulse width modulation to control ther brightness of the R,...

I use HC110 in unicolor and besseler drums for 5X7 HP5+. I use 150mL of dilution H, which is at the raggedy edge of what's recommended for minimum developer, and have seen no issues yet, but 8X10 at...

Every once in a while someone opines about how nice it'd be if they could remotely trip the shutter on their LF camera, myself included.

Here's an approach I've heard discussed but not seen...

Up to your usual standards, I see. Excellent!


// Wally

I use 150mL of HC5 @ dilution H in a Besseler drum for one sheet of 5x7 HP5, and have not had issues I can see.

Freshly expired 55? I thought all the last of the Polaroid type 55 stock expired _last year_!

Frank,

It looks like it still has the sales receipt tied to it. Even so, it's quite suggestive.

Is that Garbage Beach in San Diego?

This article describes a new discovery in optics, using ultrathin lenses (~60 nanometers thick):

https://www.seas.harvard.edu/news-events/press-releases/flat-lens-offers-perfect-image

No need...

There are 10 new Fotoman 4x5s up for sale on eBay - $800. each. These are the last production run, I'm assuming. I wonder who held on to them for so long.

I must say, these are considerably less...

Here's one for 650 british pounds sterling, on our very own For Sale area:
...

That would be true if used with a fixed-brightness light source a fixed distance from the card.

To use the same gray card to test different EVs, change the illumination (change the lights...

I must admit I'm a bit confused.

Polaroid type 55 negs are already 'developed' when you open them up and separate them from the positive.

The only thing I've had to do is bathe them in sodium...

Wow. And nice shot, regardless of development time.

Where's his website?

Thanks for explaining, Leigh. I'd never considered the amount of light that goes through the umbrella even when used reflectively.

// Wally

Louis Mendes, New York street photographer.

I agree. Mr. Johnston has nailed that tree (pardon the pun).

Did you mean HC110 1+100 for 9 minutes?

I understand what you're saying, but it sounds like he's using it with the black cover in place (if indeed his is removable).

The black cover will only reduce spill when not being used as a...

OK. If it has a black cover, it's _not_ a shoot-through, and I don't know what Leigh was thinking about when he posted this.:confused:

Eh? Is this a reply to some _other_ thread??

That's the way I used my olympus 50 1.4 on my Pentax 67 bellows: a 67mm filter-to-Pentax67 adapter, and a 49-67 step-up ring. I used a rubber band to pull the diaphragm lever that stuck out the back...

OK, let's close this thread now. The OP's question at the top, and snay1345's succinct answer at the bottom (but for mine :^).

In-between there's lots of info on macro and micro photography...

About 18" away. ie: just ourt of camera view.

Also, 'no' if you use a center filter. The exit diameter of the center filter is 82 or 86 mm, IIRC. You'd need the X-Pro 4x6 Cokin filters for that to not vignette.

I was able to shoot 4x5 FP-4 at asa 80 at f:16+2/3 with the softbox _very_ close to the sitter.

I've used the Lian-Li* 400ws and 600ws flashes that take Bowen accessories, and they've worked very well for me. They are rather brutal on the mains, demanding all the current that can be sourced to...