Das ist ein sehr guter und gelungener Webauftritt.

Der Artikel ueber Quecksilberbatterien hat mir persoenlich sehr geholfen.

Vielen Dank,
Christian

Hallo zusammen,
weiß jemand wo man eine Konica T4 kaufen oder aber reparieren lassen kann (außer denen auf dieser Internetseite angegebenen Reparaturadressen)

Hello together,
does anyone know where I can buy a Konica T4 or other facilities (than those listet on this internet page) where I can get the Konica T4 repaired

Grüße/regards

Stefan

I consider the all black lens with the metal focus ring the best. If you are thinking of purchasing one be aware that a good inspection of the lens is necessary. When the lens is on the camera open the aperture to f/1.4, look throught the front of the lens, use a flashlight and press the depth of field preview to see if the iris remains in the fully open position. Release the preview button and see if the iris opens fully. You should not see the iris blades in the full open position of f/1.4. If you do you might be seeing the lens in the f/1.8 position. If you see the blades in the f/1.4 position that is really the f/1.8 position. The lens is not fully open due to what could be several factors. 1. The lazy susan bearing assembly inside the lens needs to be cleaned and lubricated. I am reminded of the rear cluster on a ten speed bicycle when looking at the assembly. 2. The hairspring in the lazy susan assembly is missing or needs to be tensioned so the spring pushes the cam to obtain full open at f/1.4 or the cam assembly needs cleaning and a slight lubrication. 3. The diaphragm assembly needs to be removed and the blades taken out for cleaning. If you remove the front of the lens the diaphragm assembly is removable by bulling it out from the front. Once out you can disassemble it by removing the three small screws (be careful not to upset the assembly. Work on a flat surface). Once the screws are removed carefully lift the thin blue steel (watch out!) three small 1.5mm brass washers are behind the blue steel. They serve as spacers and are kept in place by the three small screws. Don't loose them. Now you can carefully remove the blades for cleaning. Use a lacquer thinner or TRPS as a cleaning solution. Place the solution in a glass jar and drop the blades in. Remember how the blades are in the lens, with the toes pointing out so you can see them through the front of the lens. The blades look like a 18th century woman's boots. When I take the internals out through the front of the lens, all the focus and f-stops remain in position. You can see the helical from the inside. Spray it with WD-40 to clean. Then use a good molybdenum moly kote grease sparingly (thinned) on the helicals. Remove the black outer trim ring by unscrewing, you can now see the outer helical and lube it also. Pretty easy lens to work on.

I consider the Konica Hexanon f/1.4 lens to be one of the sharpest lenses ever produced.

Hello
I have a camera KONICA AUTOREFLEX-T2 with a lens HEXAGON KONICA 50 1.7 that were my father. I recently found in a used object fair a HEXAGON KONICA 28 3.5 lens. In relation to the camera and the 50 1.7, everything is in excellent condition (I only lack the original protection). Regarding the 28 3.5, which apparently is fine, only now going to give the 1st film. Let's see what happens ... I'd like to communicate with someone with the same or similar equipment.
LR

I just love this Web site, please keep it up. The Konica system was one of the greatest, and it's still a fantastic treasure trove of the obscure and interesting for vintage camera collectors and users.