Tuesday 29 November 2016

Printing on linen


A friend of mine once got a test pack with a single sheet of Argenta coated linen cloth. We printed one of his negatives on it and it looked amazing. Ever since we have had the label hanging on the inside of the door of our paper storage:



We have been looking for this photoleinen L everywhere with no success. There is not a single pack on ebay, not even in the sold items section.

But one day Macodirect found some old products in one of their warhouses. Amongst them was MACO structura LUX photolinen.
After some searching on the internet i found this fact sheet on Tech Chat. I went ahead and asked Maco how much they had and got a fair price for the lot.

Now im starting to learn how to use it. Either we were very lucky with our single Argenta print or the Maco linen is a lot harder to work with. There are several traps to avoid with this paper, but once you know of them it produces wonderfull prints and i plan to use them for my next exhibition.

Pitfall 1 - The emulsion doesn't like water! 

When kept in any fluid for too long, it forms blobs that sticks out from the cloth like warts. When dried the warts withdraws into the emulsion, but are still visible as low contrast spots. The solution is to be quick. With strong developer, fresh stop, two bath fixer, hca and a quick rinse is however not a problem. Just be quick about it!

Pitfall 2 - The surface is not even

Getting things in focus is very hard. One have to remember that the focuscope shows the focus of the top of the cloth. One sees a lot more than that. Compensate and stop down!

Pitfall 3 - The emulsion is thick and prone to melt

When drying the linen one have to keep two things in mind. Be quick about it to keep the warts mentioned above to form and keep track of the temperature. Drying it hanging in the film dryer works fine, but it will be hard to get the print flat after that short of steam ironing it on a very low temperature (backside). Leaving it on the grid is too slow (warts) but they keep a little more flat. So for air drying i go with one stint in the film dryer until they are half way dry and then put them on the grid over night. Then i can get them flat in the mounting press by turning the heater on for one minute and then just leave them there for an hour or so until they have reached room temprature again. If i want glossy prints i leave the heater on for 5 minutes instead.

Pitfall 4 - Not every negative suits to be printed on cloth

As with any paper, it suits its own sets of motives. Its just more obvious with cloth. Gloomy stuff look great, so do trees while lots of details tend to get mixed up with the woven structure of the cloth. 

So what does it look like?

Well, you are welcome to see the results on my upcoming exhibition late spring. But here is one of the first prints that are considered for the wall.

Memorial grove of Skogskyrkogården with fuji gx680 and the fujinon 125/3.2@5.6. Printed on linen cloth and slighly hand coloured.
Another print of the same negative with the focus deeper into the cloth and a few minutes selenium toning.


Thursday 17 November 2016

Part 2: New cheap batteries for the gx680

Since my last post on the subject, i have also been testing out two other battery convertions with 5 and 6 aa cells. A six cell aa conversion with 2600mAh 1.2v aa cells gives a whole lot of juice. Further more, one can quick charge them with the original gx680 mk1 power house of a charger.

However, AA rechargeables are bad in cold weather. At about 0 degrees celsius both kinds of expensive rechargeable cells i tried ran out in a few hours with the meter viewfinder turned on, whereas the nominally weaker pentax batteries lasted for 3h each. Indoors, the six cell pack lasts the whole night, though.

The 5 AA holder, on the other hand, is a super backup when im out in the field, any store has disposable AA:s if i would run out of batteries. (I don't want to test the 6 aa holder with 1.5v batteries since it measures 9.8v with new 1.5v disposables).

Anyway, if you want to build a 5 or 6 cell battery, you can pretty much follow the instructions for the pentax conversion. Just remember to remove the resistor. You can get 5 cell and 6 cell holders on ebay.

So what conversion is best?

That depends on if you are converting one or two batteries and on whether you plan to use the camera in the field in cold weather or not.

My recommendation are as follows:

A: If you have only one battery to convert, go for the pentax conversion! Those batteries work well both in the field and indoors and you can recharge one while you use another one. If you are on a roadtrip, you can also use the 12v car plug that comes with the charger. If you need more batteries later, they are cheap and you don't need to build anything new.

B: If you have two batteries to convert and only intend to use your gx680 indoors or never shoot in cold weather. Go for two 6-aa packs with 2600-2700mAh 1.2v rechargable cells, if you put the lid back on, they will look exactly like the original fuji batteries and you prevent someone to put six 1.5v disposables in them by accident.

C: If you have two batteris to convert and want to use the camera both in the field and in the studio. Go for one pentax conversion and one 5-aa conversion. Then you are super safe since you can buy disposables if all the pentax batteries should run out or you forgot to charge them. You could also go for a 6-pack and get a dummy battery, but i wouldnt risk someone (most likely me) putting almost 10v into my camera by loading six 1.5v batteries by misstake.