|
|
| Nova Trimate [Model 200012 16x20 Slot Processor] |
| CLICK HERE TO VIEW ARTICLE AS BLACK TEXT ON A WHITE PAGE |
|
I encourage you to send along your own experiences and any additional information you feel is relevant to this discussion.
EQUIPMENT REVIEW - January 13, 1996 |
|
Manufactured by Nova Darkroom Equipment
Distributed in USA by Jobo Fototechnic Price: US$ 719.00, April 1994. [price has increased since.] |
|
Abstract:
|
|
Review:
As a teenager, just starting out in photography in 1968, my ardent desire
was to free myself from the overpriced "labs" that would never give me the
results I wanted. I realized right away that my own darkroom was a must,
and that I had to do all my own processing. The camera, enlarger, lenses
all had to be purchased at agonizing expense. But what about...trays? The
robbers at the camera store thought I hadn't the wit to visit the
restaurant supply company, who were glad to sell me plastic trays at
reasonable cost.
For years I poured chemistry into trays, used it as best I could, and
finally dumped it at the end of each working session. The time taken
setting up and cleaning up frequently equalled the time spent working. More
frequently, it daunted me and prevented work when 'not enough' time was
available.
I had an idea: get some plywood, coat it heavily with plastic or epoxy
paint, make tanks [a tank is a tray on its side, with only the narrow edge
open] of the appropriate dimensions to accommodate sheets of paper, and
make tight covers so I could preserve the developer at least some length of
time. My goal was a darkroom I could just start up at will, and close down
with no fuss.
I never built my tanks, and I always believed my idea was so obvious I
could not be the only person to have it.
Nova of England has produced the correct version of this idea, which indeed
was floating in the air past many minds. Theirs is far more evolved than my
notion ever was: all three tanks integral in one unit, lightweight [because
they didn't use plywood!], temperature controlled [a huge plus feature.]
And they solved a problem I never considered: how to insert, hang the sheet
in the tank, and transfer. The 'Nova clip' is at the heart of their system,
and is an invention as basic as the print tong, film developing spiral or
clothes pin.
The Nova clip is a fairly broad plastic device that contains two small
stainless steel pins. Held correctly, the user squeezes it gently and the
plastic flexes, opening the 'jaw' and permitting the clip to slide over the
edge of the sheet of paper under the enlarger. Releasing pressure closes
the clip; the pins grip the edge of the sheet, creating two tiny marks that
really require vigilance to see later. Lifting the sheet, carrying to the
Trimate and slipping edge-first down into the developer tank is smoother
and quicker and far more elegant than this sentence.
Once the printing sequence is done, Nova advises, in their little manual,
the (wet) clip can be shaken and is ready to go again. Or is it? When one
prints with white borders, the clip can be wet and cause no problem. I have
found that when I print black right to the edge of the sheet, as I do much
more than half the time, marks can appear where moisture from the clip
touched the paper. Therefore careful wiping is needed. It would be an asset
to have a quantity of clips. They could be set in front of a fan or small
heater to dry without handling. Then a dry one would always be ready.
Shaking them off, semi-effectual at best, is a horrible thing to do to
one's wrist. I have often found myself making enough prints--let me
emphasize: being enabled by the efficiency of the Trimate to make enough
prints--that shaking the clip so many times hurts my wrist.
Sadly for the buyer of the Trimate, and for the reputations of the makers
and marketers of the Trimate, only one clip comes with the unit. Additional
clips cost US$ 14.50 each! [List price, according to distributor.] Talk
about gouging. When I learned this fact I nearly cancelled my purchase.
Having several clips would make life much easier. Frankly, I believe it is
unethical to sell such an expensive machine with only one clip; it's like
the old trick of selling the car without the tires, or in this case with
only one tire! Nova and Jobo would enhance their stature by including some
reasonable number of clips with each unit. The price of US$ 14.50 per clip
rankles. The device is overpriced far more than enough; why show off such a
cheapskate character?
If companies like Nova and Jobo would learn the effect on the buying public
of open-handedness, generosity and fairness, they would do much better.
Instead they took more than US$ 700 from me for a brilliant system that
vastly improves my darkroom 'speed,' only to slow me down with a clip that
I have to spend time wiping off. Incongruous. Where is my motivation to
knuckle under and cough up the bucks for three or four [or ten!] more
clips? I resist this; it is something to be resented and despised.
The designers of the Nova slot processor system really deserve commendation
for their clip. It permits the system to exist. One might be able to run
16x20s through the Trimate with normal tongs, but it is inconceivable that
it would be as quick. Smaller prints, of course, would be out of reach down
in the tank. The clip allows easy production of any size print up to the
maximum 16x20.
The Trimate is part of a system of darkroom processors made by Nova. They
also make units in smaller sizes; previous reviews in the photo press have
examined the 8x10 unit. Jobo, the distributor in Ann Arbor, USA, says no
20x24 units are made, so it seems the Trimate is the largest of its type.
The Trimate meets the eye well. True to its advertising, it does resemble
an oversize toaster, complete with extra slot. The plastic tank walls are
made of white plastic with a cross-hatch texture inside.
This textured plastic surely must have cost the designers many hours to
source and test. It is necessary to negate the tendency of sheets of photo
paper to stick tenaciously to a smooth surface. Probably all darkroom
workers know how a sheet will stick to the bottom of a tray if it is
smooth; the technical term is "to glom," as in, "the sheet has glommed onto
the bottom of the tray."
Of course, merely preventing glomming is not enough. The texture must not
scratch the delicate, wet emulsion. More successful hours of research for
Nova: in twenty months of constant use I have scratched not one sheet.
But perfection has not been achieved, because after all texture is by
definition a series of high points and low points. The low points are
perfect gathering places for the sludge deposited by developers. The high
points are by no means free of deposits, either, and sometimes a sheet
shows this material offsetting onto the face of a print.
Cleaning the interior tank walls is a scrupulous necessity, and should be
done at each developer refill. An appropriate tool is essential. But-where
is such a tool? Not included with the unit, not offered for sale at yet
more exaggerated cost. The baby-bottle brush that suffices for the 8x10
unit will not reach the 18 inches to the bottom of the Trimate.
The construction of the Trimate places certain demands on the
characteristics of the tool used to clean its interior. The textured
interior surface requires bristles; sponge and textile did not work for me.
Whatever you push down into those tanks should not be too thick, because
the plastic can be flexed outwards much too distressingly. [See below for
discussion of the flimsier-than-thou construction of the Trimate.]
This is an important matter. Sludge buildup can destroy the utility of the
Trimate. Frequent cleaning is essential; allowing too much buildup can make
it nearly impossible to remove. And yet, because the plastic chosen by the
maker is quite thin, cleaning is a delicate matter if tank rupture is to be
avoided.
The tool I use to clean the Trimate is a long-handled laboratory bristle
brush. The bristle end is just the right thickness; unfortunately it covers
only a very small area and makes the process long and tedious.
Nova has sold a machine missing an essential part. Proper design would
include the correct cleaning tool.
The fact that the deposit and cleaning of sludge is a problem actually
demonstrates one of the most endearing aspects of the Trimate:
Developer does in fact last for weeks [months with some developers!] It is
hard to emphasize the value of this sufficiently, especially without
seeming hyperbolic.
The developer I used for first fill-up was Selectol, a well known low
capacity, short lifespan developer. I processed ten 16x20 sheets, then
closed up the device with its three tubular 'slot covers.' A week later I
returned, and ran a further ten sheets. They matched the first set. This
was the first time in my career I was able to exhaust a mix of developer.
[An aside: large numbers of sheets can be run through the Trimate in part
because the 'Nova clip' makes it much easier to move the sheet than hand
transferring through trays. Ten 16x20 sheets are a simple, quick run.]
The Nova delivers on its promise to conserve chemistry.
Even more important, I think, is the related benefit of eliminating the
setup time for trays. Now I merely enter the darkroom, lift off the covers,
and work. It is possible to spend fifteen or twenty minutes in the darkroom
and have something to show for it. I wonder if the marketers at Jobo even
realize the importance of this advantage? Productive, SHORT sessions in the
darkroom have always been unheard of. The Nova system is a major advance.
If I use a high capacity developer like Neutol, I can easily go four to six
weeks between replacements. The process of draining and refilling is quite
easy, too, because each chemistry tank has a drain valve. I found some
scrap tubing of the right inside diameter and ran it from the drain valves
to the sink drain. No mess, no fuss.
The Trimate holds just under a US gallon of chemistry per tank. That allows
a small amount of developer to be kept in reserve for topping up as sheets
carry developer out of the first tank. Many liquid developers, like Neutol,
come in containers of one-half liter, and dilute 1+7 to make four liters
working solution. Again, a perfect amount to fill the Trimate and have some
in reserve. Very good planning in this regard by the folks at Nova. Topping
up regularly when working is important, not only because the sheet must be
kept submerged. When the level drops below a certain point, but is still
above the sheet edge, the sheet will glom to the tank wall as it is being
inserted. Topping up seems to allow enough room for the sheet to get a
'layer' of fluid behind it as it is lowered. This matter is important but
not a problem; Yogi Berra's comment "you can see a lot just by looking"
applies.
Complementing the white plastic walls is gleaming black plastic forming the
ends, top pieces and bottom. To an old B&W freak like me the Nova units
look fine. The plastic forming is well thought out and executed. The top of
each tank is slightly broader than the depths, because the top of each wall
curves out slightly toward the horizontal, black plastic of the top. This
black strip of plastic has a well-formed edge against which the back of the
sheet may be squeegeed as it is removed from each succeeding tank.
Since the Trimate has three tanks whose tops are slightly broader than
their depths, spaces exist 'between' the tanks. They are called tempering
chambers or water jackets. Filled with water heated by electric heaters
sealed in glass, they transfer heat to the adjacent chemistry tanks. The
ability of this arrangement to maintain consistent developer temperature is
unquestioned. My darkroom chills down quite badly in winter, but the
temperature of my dev is always the same. And since the heaters are only 150
watts each [there are two] the energy consumption is relatively low. And
even better, if one does not leave them on continuously, the time required
to raise the chemistry temp from chilly darkroom temp to operating is
fairly short. I find an hour is about as bad as it gets, in the depths of
winter.
The subject of temperature regulation is dealt with in the product
literature delivered with the unit. It contains the following gem of
clarity, which has been used (without attribution and with single-word
alteration) in a review of the Nova processor that appeared in an
international (print) magazine: (Darkroom and Creative Camera Techniques,
Nov/Dec 1993, page 53.)
"The reason for poor solution heat recovery from conventional water jackets
is due to the jacket and chemical tanks being of similar temperature. The
Nova system uses a heat dissipation system that carries a 5C difference
from the water bath to the chemicals. The system is constantly recovering
temperature drops while processing - eliminating potential of lowering the
chemical solution's temperature."
(JOBO Product Catalog, "For Your Best Image," copyright JOBO Fototechnic
1993, page 15.)
Apart from the mouthful of marbles, the use of manufacturer-provided
writing in a review of a product gives us the impression that the review is
less than trustworthy. The applause is muted when the facts are known. The
units reviewed in the photo media were the 8x10 size processors. They
seemed to have been provided by the seller for review, not purchased by the
reviewers.
I am reviewing the Nova 16x20 three-slot manual processor, which they call
the 'Trimate.' I purchased my own unit (with my own money!) and have been
using it since May 1994. My comments are based on my own observation and
analysis.
My enthusiasm is not as good as pumpkin pie. It's cold as the cash I laid down.
Flimsier-than-Thou Construction:
|
|
Conclusions and Recommendations:
The Trimate has revolutionized my personal darkroom activities and ability to produce prints. My ability to utilize darkroom time has been enhanced by the Trimate to a degree difficult to express without seeming to exaggerate. The Trimate allows me to produce RC and fiber prints with an ease and freedom from drudgery formerly impossible. The Trimate is suitable for color process as well. The diversity of its range of application is extremely impressive. The Nova Trimate is a severely overpriced, mechanically flawed device based on a concept that is simple, vastly useful and deserving of widespread exploitation. Nova and Jobo should market a unit that does not suffer from the extremely simple-to-correct flaws exhibited by the Trimate. Easily replaceable heaters that are thermally protected, and heavier or better reinforced plastic tank walls would go some distance in justifying the more than US$ 700 price. The Trimate must be able to withstand moving when full, or else it must be dead simple to drain all five chambers. The excessive price of the Trimate provides an opportunity: Somewhere there is a manufacturer that could build a better version of this type of processor. Organizations that come to mind include Zone VI - Calumet and Darkroom Aids Co. If any do so, I am standing in line for a 20x24 unit! The home-handyman photographer could doubtless build one, too. With a budget approaching US$ 700 one could afford to experiment with aquarium-style containers and heaters and whatnot. The savings in chemistry and improvement in time utilization justify this type of device. |
|
Final Conclusion: The Trimate is a seriously flawed execution of a valid concept. It proves the excellence of the idea, but falls short in physical construction. |
| Copyright Lloyd Erlick. All rights reserved. |
|
|
|
|