![]() In a way, this is similar to the rising popularity of vinyl – young people seem to be really interested in the analog treasures of the past. This is a short list of lenses that are likely to work for your Pentax 67.Vintage camera photography and vintage lenses are going through a resurgence nowadays thanks to popular Instagram hashtags such as #filmisnotdead and #believeinfilm. For instance, if the diameter of the rear of the lens is 80mm, the thread adapter lens mount will need to be 80mm. The rear of the lens will need to fit the m65 thread adapter lens mount. Finally, your projector lens goes into the thread adapter. Then, the thread adapter attaches to the m65 helicoid. It then attaches to the m65 helicoid, which acts as the focusing apparatus. The m65 to Pentax 67 adapter mounts to the Pentax 67 like a lens would. I will suggest a few lenses below in another section Lenses that will cover are usually designed for 35/70mm cinema film and listings typically show this infoĬertain lenses that do not fully "cover" may leave empty space on the negative and/or will cause vignetting to various degrees And lenses over 140mm should be excellent bets if designed for 35/70mm cinema film It is best if it covers a little more than the 6x7 since barely covering will lead to optical issues at the corners, most notably, pronounced vignetting, poor sharpness, etc. Measure the rear of the lens from the outer edge to outer edgeĪ lens that will cover the full 6x7 negative size The mm size will depend on the rear of the lens you want to use.īe sure to first have your lens picked out The key is finding the mm size that allows you to achieve the focus distance you want which is typically a meter or so out to infinity. The mm size will affect various lenses in different ways. M65 helicoid (17-31mm is best for most lenses) Again, these items are ones that I have used and recommend. I have heard that certain items from certain sellers are prone to breaking. And, just as a note, I have linked to the specific sellers' items who have been tested and recommended by myself and others much more experienced than myself. Since this can be so daunting with many variables, I'm going to make it as simple as possible. If you’re dead-set on self-adapting your own lens, you can go that route. Self-adapting can get you some pretty frustrating results where the lens either focuses out too far, or only very close. When buying direct from them, you can know that the lens you order will be the correct distance from the sensor in order for you to achieve the appropriate focus. The best and easiest way to adapt a projector lens is to contact The Boutique Lens. How to Adapt Projector Lenses to Pentax 67 Images may often appear de-contrasted and will need post-processing to correct as desired Since 1) they are older and 2) were intended for use in projectors usually used in dark areas, these lenses often do not have lens coatings like modern lenses to reduce flare ![]() Some very nice ones are quite rare and hard to find/stumble upon Usually, don't have a way to change the aperture Old and may therefore very commonly have fungus, balsam separation, etc. Have very interesting bokeh, some even have "swirling" bokeh on certain camera bodies Typically very good optical quality glass Very large apertures (f/1.7, 1.8, 1.9, 2 are normal) ![]() These lenses have several wonderful characteristics and some characteristics that are less desirable: The solution I encountered was adapting old projector lenses. My desire was to find a lens that was faster than the 105mm f/2.4 and at a better portrait length, which I consider to be about 180mm on a 6x7 negative or about 80-100mm on a full frame/35mm camera. A while back, I began to experiment with different lenses on my Pentax 67. ![]()
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