But if you have a darkroom, you probably wouldn’t buy a daylight tank, would you? Why not just turn it upside-down and drain it out the top? Because this thing is a messy, leaky bastard. Once you get the film carrier assembled the instructions are sketchy the film carrier is actually nice. If you want a film hanger for dip and dunk, this may be your ticket, as it loads easily and drains well. The system would still suck, but it suck less in that there would be two less pieces to lose and it wouldn’t be quite as messy.

Feed a sheet into each of the the slots and you’re good to go. Once you get the film carrier assembled the instructions are sketchy the film carrier is actually nice. The system would still suck, but it suck less in that there would be two less pieces to lose and it wouldn’t be quite as messy. HP went to the trouble of making the vents that surround the spouts open and close by twisting, why not go the extra centimeter and have it lock shut completely and forget about the caps altogether? Unless you turn it upside-down to get the chemistry away from the spout, but then the lid leaks, which it does when you invert the tank to agitate. The lid seal leaks, chemistry leaks out the top air vent when you fill the tank, and chemistry blobs out when you remove the cap for drainage. It’s difficult to tell when you’ve got the lid all the way on by touch, which does not fill me with confidence.

HP Combi-Plan T 4×5 daylight film developing tank review

Once you get the film carrier assembled the instructions are sketchy the film carrier is actually nice. If you have a hose to your faucet, you reverse the flow for washing by hooking the water up to the bottom plug and it overflows out the top.

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I’d rather have knowledge certain that the lid is on and light-tight before I take the tank out of the bag ino the light. The HP Combi-Plan T is an ostensibly invertable daylight processing tank for 4×5 sheet film ddveloping glass plates. To fill the tank, you cap the bottom spout, affix the funnel and open the top air vent accomplished by twisting the spoutand pour your chemistry in.

HP Combi-plan T 4×5 Sheet Film Developing Tank System # | eBay

I think there’s a word for that, and I think that word is “bad”. The np start once you put the lid on. I can’t seem to find any of the long-discontinued Paterson Orbital processors that Katie Cooke raves about for sale in the US.

Why not just turn it upside-down and drain it out the top? This is compounded by draining out the bottom, which takes about 30 seconds, meaning that the portions of film on the bottom of the tank get 1 minute and 10 seconds more time in the developer than the portions at the top.

Yankee CF Replacement for HP Combi Plan | B&H Photo

The lid seal leaks, chemistry leaks out the top air vent when you fill the tank, and chemistry blobs out when you remove the cap for drainage. I think it would be great for dip and dunk processing in a darkroom as the whole unit picks up easily without disturbing the film and seems to drain well.

Unfortunately, it seems to be one of the only options for 4×5 daylight processing. Unless you’re using a split-bath developer like Diafine that isn’t terribly time-sensitive or are doing stand development with a high dilution, I don’t see how you could possibly get even development with this thing as by the time the top of the sheet is covered, the bottom has already been covered with developer for quite some time.

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It’s difficult to tell when you’ve got the lid all the way on by touch, which does not fill me with confidence. Speaking of the caps, they’re held on by those little plastic fishing line fasteners that hold tags to clothing, the ones with a T on each end.

If you want a daylight tank, I recommend that you save your film, your money, your chemistry, and your sanity and skip it. Because this thing is a messy, leaky bastard.

This is great in theory, but in practice, the funnel channel and air vents are so small that it takes about 40 seconds to fill the tank. If you want a film hanger for dip and dunk, this may be your ticket, as it loads easily and drains well.

But if you have a darkroom, you probably wouldn’t buy a daylight tank, seveloping you? folm

HP went to the trouble of making the vents that surround the spouts open and close by twisting, why not go the extra centimeter and have it lock shut completely and forget about the caps altogether?

Unless you turn it upside-down to get the chemistry away from the spout, but then the lid leaks, which it does takn you invert the tank to agitate. Feed a sheet into each of the the slots and you’re good to go. Other than that, as far as I know, the only other option is a rotary tube processor, which is expensive and bulky.

The system would still suck, but it suck less in that there would be two less pieces to lose and it wouldn’t be quite as messy.