Tag Archives: 135mm

Tintype Adventures Begin

Last summer, I had a tinype photo sitting with Nuno Marcelino in Lisbon, Portugal.  It was an amazing time and he showed me all the ropes in producing a wet collodion tintype.  This had been something that I wanted to do for a while but never got the chance to.  I came across the Rockland Tintype Parlor kit a few months back and decided to give it a go before I dive into wet collodion.

The Rockland Tintype Parlor kit includes eight sheets of 4×5 tintype plates, 1 oz of Ag-plus emulsion, a bottle of reversal developer and a small pack of fixer powder.  It’s a nice little kit for $35 and you pretty much have all you need to start making tintypes.

Next, you have to figure out how you are going to mount the tintypes in a film holder.  I have done some research and the easiest way is to double-side tape the plate to a normal holder.  Or you can cut it down and fit the custom ones sold by RayKo Photo Center in SF.  I didn’t like the idea that you need to trim it down to 3.375″ x 4.375″.  Why lose the extra 0.625″?  I decided to make my own.  The idea came when I was cleaning up some old 4×5 holders at home.  I saw an old Graflex Graphic Packfilm adapter that I never use (since the film had been obsolete for decades).  I opened it up and I thought it would be the perfect candidate to make my own “true” 4×5 tintype holder.   Using foam core and black gaffers tape , I custom made the padding and holder that will fit inside this adapter.  Everything was snug and I can see the tintype plate fits perfectly with the original mask.

tintype2

Next, it’s coating the emulsion.  I put the clear bottle of Ag-plus in warm water.  I put my plates on the red light for preheating.  I have a block of ice in tupperware and a hair dryer (that can blow cold air) for solidifying the emulsion and drying of the plates.

Coating my first tintype plates
Coating my first tintype plates

I waited for about 7-8 minutes and started to squeeze the Ag-plus out of the bottle.  Chuck of it came out, oh no! I carefully put the chunks back in the bottle and back in the warm water bath.  I waited for another 5 minutes and finally everything in the bottle liquefies.   I pour a quarter size of Ag-plus onto plate and started to swirl it around.  It just won’t move, so I started to spread it with my fingers.  This is bad, uneven coating is just an understatement.  I poured the excess in a black 135mm film can for later use.  I then put this horribly looking plate onto the block of ice for about 3-4 minutes before blow drying it.  Then I put this into my pre-made 4×5 holder to be laid flat and dried overnight.

By my 4th plate, I was getting better at this.  I realized a couple of mistakes I made.  First, I need to pour a lot of ag-plus (1/4 of the plate) on the plate before it can be coated by swirling it around (no fingers).  The consistency of the Ag-plus is best described as white glue.  It’s thick and not too easy to flow around the plate (unlike collodion).  The second issue I had was the temperature of the plates itself.  Heating it on the red safety light was not enough and it cooled down too quickly and the ag-plus solidify almost immediately from contact.  Next time I will either hot blow dry the plates to temperature or setup an electric hot plate.  Keeping the ag-plus bottle warm is also crucial.

After the plates dry overnight, it’s time for test shots.  From the research, the ISO rating of this emulsion varies and highly dependent on the thickness of the coating.  My first coating was so ugly that I am sure I will hit all sorts of ISO rating on the one sheet.  For rule of thumb of testing, I metered for ISO of 0.5.

Not enough light! ISO 0.5?
Not enough light! ISO 0.5?

I mounted three flashes at full power (1/1, 105mm) and an LED panel (1000 LED) at full 99%.  I metered it at ISO of 3 and showed F8 at 1 sec.  I have read that you need to put in a blue filter in front of the meter to get an accurate reading.  I don’t have a blue filter handy but I will give it a try later to see if there are any difference.  I setup my Graflex Speed Graphic with a Fujinon 135mm f5.6 lens shooting wide open.  The light was blinding and I took the tintype to my darkroom.

I pour the Rockland reversal developer onto my Paterson 5×7 trays and started to agitate the plate.  The instruction says a development time of at least 3 minutes.  After 3 minutes, I can still white spots on the plate.  Finally after 6 minutes, the plate turned completely black and then an image started to emerge.  I developed the plate for another 4 minutes to a total 10 minutes.  Instead of using Rockland’s powdered fixer, I just dump it in my Ilford Rapid Fix bath for 6 minutes before rinsing out with water.

Result of my first tintype.
Result of my first tintype.

I see an image!! and better yet, I can recognize they’re my 8x10s!  The long development time tells me that there might be issues with my developer or my emulsion.  The fact that it took so long for my plate to turn completely black tells me that my coating of emulsion might be too thick.  The reversal developer in the bottle is also not clear but already slightly brownish when I opened the package.  This tells me that the developer might be bad, hence hindered the development.    I did a second test shot with the same lighting setup by with my Kodak Aero Ektar 178mm lens wide open at f2.5.  When I developed it, even after 13 minutes, only a faint image surfaced.  Again, I need to explore rather it’s my developer that’s gone bad or my emulsion is too thick.  I was quite shocked that the first tintype turned out as well as it did and this is really encouraging.

Ammonium Thiocyanate, ready to mix my own reversal developer
Ammonium Thiocyanate, ready to mix my own reversal developer

I did some research online and found a formula for this reversal developer, which is 120mL stock undiluted Dektol with 4g Ammonium Thiocyanate.  I will make my own batch and see how it works out.

 

Fixing the Graphex 135mm Lens

Operating on the Graphex 135mm lens tonight.  Anything below 1/25 doesn’t work, B does but not T, flash trigger also dead.  I already cleaned up the shutter blades with no luck. Finally cracked open the shell and looked at the inside.  A simple drops of oil in the right places and a good cleaning of the contacts solved both issues!  The lens is super snappy and I am very happy!

Open heart surgery on the Graphex 135mm lens.
Open heart surgery on the Graphex 135mm lens.

 

Large format trials part one

Two weeks ago, I took the Graflex Pacemaker Speed Graphic for a spin in the Gold Coast.  It was a bright sunny day and I thought would be perfect to try out the machine with some el cheapo Shanghai film.  Pointing towards the hotel as shown below, I was shooting at f11, 1/50.  From my experience with the Polaroid 800, these Shanghai 4×5 film is light hungry.  Even though it’s rated at iso 100, you have to compensate this by at least one click (shoot this at iso 50).  Most cases, I even have to shoot at iso 25 for low light conditions.  I got the most success when I compensate this by 1.5 clicks.

My view through the ground glass.
My view through the ground glass.

This unit is from 1955 and the ground glass is full of dirt.  Right in the middle of the glass, the fresnel is coming off.  I need to take the ground glass out and have a good cleaning of it and maybe replacing this.  I didn’t have a focusing cloth and I just used my dark bag which worked ok.  It was tough to focus in the 35C weather and the sun shining right at you.  On top of that, you have to bandage your head with the focusing cloth.  I should look at an angled viewfinder!  The Graflok worked perfectly and so did the Grafmatic film holder.

After the shoot, I quickly developed the film at home with my Paterson system 4 tank which came with my Paterson Colourtherm machine.  It was a really hot day and the water was at 28C.  I developed the Shanghai film with Kodak HC110 dilution H in 14mins and Kodak Rapid Fix for another 4mins.  I scanned the photo with my Epson V700.

The developed photo!
The developed photo!

When I looked at the negatives, it was fine.  When I scanned it, I looked at the top part and I was like, it looks a lot more cloudy than it should? It was a bright sunny day.  Looking closely I can see water bubbles!  This was the first time I developed 4×5 with the taco method in the Paterson tank.  The Paterson tank top is slanted, which allowed some movement of the 4×5 while developing.  The AP tank that I used before, the top part was relatively flat and it was fine.  Next time if I am using the Paterson tank, I have to use 900mL of solution rather than 650mL.  It’s these unexpected “boo-boo”s that makes analog film interesting.  The photo really has a vintage feel to it.  I look forward to another shoot soon!