Photavit Photina Reflex TLR
The Photina is a German TLR (twin lens reflex) camera for type No. 120 film rolls. It has not really a twin pair of lenses, thus it may be to be classified as pseudo TLR. Its lens is a Roeschlein-Kreuznach Achromat f9-85mm and its shutter offeres speeds from 1/30 to 1/100 seconds. Photavit made it also as Tower Reflex II for Sears.
The Photina II has a faster shutter (1/25-1/200 sec.) and a 3-element f3.5-75mm lens. It was also made as Tower Reflex III for Sears.
The Photina Reflex (many sources say Photina Reflex III) is a TLR camera that makes 6x6cm exposures on type No. 120 film rolls. It was made in the 1950s by Photavit. It is equipped with a pair of Steinheil München Cassar 1:3.5 f=75mm lenses, or with Isco Göttingen Isconar 1:3,5 75mm lenses. The shutter is a Pronto with speeds 1/25 sec. to 1/200 sec. plus B mode, or a Prontor-SVS shutter (as the one in picture on the right) with speeds (in seconds): 1, 1/2, 1/4, 1/8, 1/15, 1/30, 1/60, 1/125, 1/300 plus B mode. Camera lens and finder lens are gear coupled for finder screen focusing. Photavit made it also as Tower Reflex 30 for Sears and as OGA-Reflex for Obergassner.
How to test a Rolleiflex?
There are a number of threads on this forum that deal with the topic of having a Rolleiflex repaired, or more precisely, who to have work on your Rollei. Most photographers only realize there is a problem after the film is developed, so I though I would give some general guidelines on how to test a Rolleiflex.
2) Now try the slower speeds in order 1/2, 1/4, 1/8, 1/15 (on older cameras 1/2, 1/5, 1/10) do they seem to be cut in half each time, if so then the slow speed retard is probably in good adjustment. Usually if the 1 second is slow, the problem will become less pronounced as the speeds become faster.
3) This is a biggy! Try the 1/15 and 1/30 (on older shutters 1/10 and 1/25), do they sound the same? if so then the shutter is out of adjustment and will need to be put back into adjustment. Between 1/15 and 1/30 is were the shutter goes from the low speed retard to the high speed retard, if they are the same speed then the low speed retard has slipped.
4) Work your way up from 1/30 to1/500 (1/25 to 1/300 or 1/400) do they seem to be half as you go, if so then they are okay. The most frequent trouble is with 1/250 to 1/500 being the same speed. If they are the same speed then the high speed retard is out, or the main spring is fatigued. In many cases it makes no difference if the 1/125 is okay since most people never use the 250, or 500.
5) acceptable tolerance for a leaf shutter is +/- 25%! That means that the 1 second can actually be 1.25 seconds and the 1/500 could be 1/375; also, most people don’t realize it but the shutter shoots at about +/-15% repeatable, and shutter speeds should be check at least 5 times and an average taken to come up with the actual speed.
7) Other film advance problems are: The counter did not reset to zero when the lever was depressed, this will require cleaning. The crank grabs intermittently, in which case the ratchet is gummed up, stiff winding, noisy winding, does not stop on the back stroke, all will require work.
There are dozens of other things that can be looked at but most will show up in a photograph, so I will let that be the definitive test.
I hope all of you will find this information useful, and I think that these tests should always be performed before you ship your camera off for repair; then you can see just how honest your repair person is.
by Mark Hansen June 2004
Here is how I clean Maxwell screens, it depends on how filthy it is. If it is just a little dusty I blow it off with compressed (canned will do) air and call it good. If it has a few dirty spots (dried spit, soda pop, finger prints) I use a cotton swab and some Isopropanol, and very lightly wipe it (after blowing off the dust). If the screen appears to have excessive grime on both sides then I remove the hood from the camera, via the four screws through the flange of the hood. Once the hood is off, I put a playing card down in front of the springs (on top of the screen to protect it) that hold the screen and then I remove them with a pair of tweezers. The screen will drop out and you can clean it with warm soapy water while wearing a pair of rubber gloves, and then dab dry with a clean cotton cloth. Remember when putting it back in to replace the foam pads that go in each corner and reinstall in reverse order.
While the hood is off you may as well blow the dust off of the mirror, and from inside the mirror chamber and clean the rear of the viewing lens, I also clean the hood completely with the cotton swab and alcohol.
by Kelly Flanigan June 2004
The Rollei TLR‘s that I have tested for friends from Ebay have twice caught cameras that had missmatched lense; ie front element has been swapped; to make a better looking; more saleable camera. This practice was of swapping was considered wrong in the National Camera Repair course I took over 3 decades ago; but seems to be alot more common today. If you are lucky; the match will have the same focal length lenses. If wrong; NO CLA can fix the abortion/hack job. Here the viewfinder and film plane can only be in focus at one distance; and all others will misstrack. Some earlier threads mention that there is no risk to a lens swap; with Rollei TLR’s or even Retina IIIc’s. One should check the infinity and two close distances for focus; if buying an unknown TLR; to weed out the cosmetic/nonfunctional collectors cameras; from the working cameras; that focus great.Many cameras just “go bad” to do lack of usage; the shutter gets gummed up. At one ham radio swap meet; a guy was hawking old cameras. He had a can of lighter fluid under the table. A typical gambit is to loosen up the old birds prior to sale; just enough to fool the customer. The leaf shutter camera my friend bought from him worked a few weeks; then gummed up. Removing the old grease and dirt is how we fixed it. Sometimes the lighter fluid gambit works along time; sometimes it just helps make an old gummy camera saleable for a day. This is like recharging your old cars battery the day before sale; stuffing bananas in the wore out rear end; getting the engine warm before the customer arrives; putting a tad of anti freeze under the cap to act like the fluids were changed; wiping the shocks so they appear new; adding fake oil change stickers!
Many TLR’s have dirty mirrors; cleaning the mirrors alone brightens the viewfinder alot. Some ancient cameras really need resurfaced/replated mirrors; if a hacker cleaned the mirror wrong; and or oxidation took a toll. We we told in the camera repair business to always let the customer think the new wazzoo screen did ALL the brightness improvement; so a customers ego would feel better with the super high price of a wazoo screen.
Most gummy shutters get quicker after a few shots. The moving average climbs with each shot; then settles in. This means a roll of film shot quickly will have decent speeds. A shot done a day later will be slow; if it was mid roll.
The film feeler transport adjust is sensitive to film + paper thickness. Old Ilford FP4 in the 1970’s was thicker in this combo that Kodaks Plus-X. Sometimes a camera will work fine with one film; and not with another brand. Let your repairperson know what film(s) you use; if you have a problem like this.
The feeler tension of the film sense can be correct; but the mechanism gummed up. One of my Rolleis is like this; if not used enough. It will always trip on the 2nd frame; and not the first; in not used in months. Then the second roll ALWAYS correctly trips and works correctly; if the second roll is within a day or so.
|Opinions expressed above are that of Mark Hansen and Kelly Flanigan, reproduced here for the benefit of those thinking about jumping into Rolleiflex TLR. These discussions are available on www.photo.net|
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