5/19/2023 0 Comments Noflexar system lens construction![]() This near-macro capability also adds greatly to their utility for the You decide if you need the 240mm, 400mm, or 640mm from the typical trio ofīecause of the range of the focusing mount, these noflexar lenses can be used from infinity down These lens heads just mount on the adjustableįocusing mount. With any of the interchangeable lens heads. You can use the same follow-focusing setup The noflexar lenses are sometimes called lens-heads. Lens bellows using a special adapter for the desired camera mount. There is a squeeze control which is pressed to focus the lens. The Novoflex system mounts the lens on a special focusing mount, shaped somewhat like a gun. Telephoto lenses prior to the advent of autofocus systems. The Novoflex follow-focus system was long regarded as the fastest available focusing system for The most popular series were the 280mm f/4.5, 400mm f/5.6, Novoflex is best known for their follow-focus lenses. Needless to say I am over the moon with this free gift! Not much information is available on the internet regarding this item, but I gathered that is is called the Novoflex Follow Focus. I later found out that for closer subjects the bellows is used for fine focussing. This is of course a universal set-up and different adapter rings were supplied for all mounts - mine is M42. I could not believe my eyes, since most long M42's I have tested did not impress me at all. ![]() It was already getting a bit late but I was surpised that I could really get decent shutter speeds with all aperture settings, but what surpised me most was the image quality and sharpness of the lenses - they are really sharp F5.6. Now the 400mm gives me 680mm and the 640mm an equivallent of 1088mm. I even got the focus indicator on the SD10 to work perfectly! Then started using the spring loaded trigger, and voila! - perfect focus. I played around with the bellows, but no focus. I got out the tripod, figured out the configuration and fitment, got out my SD10 and M42 adapter and mounted this monster. The gunstock and bellows read Novoflex and that was the only thing which was familiar.Ĭurious as hell, I left the office early and tore off the tatty vinyl to reveal two lenses - the one a Novoflex Noflexar 400mm and the other a 640mm one. All the lenses and barrels were covered with some vinyl to protect it. I was totally baffled with this set-up - never seen anything like it. Next, an attachment which screws into the front of the former lens, and another long barrel which can also be attached to the former lens. "I don't think there is one" came the reply. "What happened to the back glass element?" I wanted to know. Nice round aperture formation, but no glass element in the back! One can stick your finger in the back and touch the apertures. Thick glass element in front with aperture settings from F5.6-F32. Next came the "lens" which is attached to the front of the barrel. This device also had a spring loaded trigger and the whole barrel moved when the trigger was depressed. Then came what appeared to be a gunstock, but with a bellows mounted upside down at the back. First an old Pentax Spotmatic and I knew what was to follow would be some M42 stuff. "This belonged to my father, who was an avid photographer and I want you to have this stuff" Pierre said. He had a vintage dumpy level and I gave him the tripod as a gift.Ī couple of days later, he walked in with and old camera case and unpacked the contents on my desk. My intention was to somehow fit a tripod head on this, but this project just did not materialise. UV filters are usually sold for protection but polarizers have a genuinely useful photographic purpose, attenuating glare, surface reflections and increasing color saturation of the sky and some other surfaces as a side-effect.A friend of mine visited me some time ago and saw a wooden & brass dumpy level tripod I restored. ![]() ![]() Generally, the less you pay, the more degradation there will be. There will be a degradation in image quality if you use a filter. My lenses have 8 filter sizes so you can imaging how much money I saved on polarizers alone! Even if you have just two lenses with different filters you'll save. It saves lots of money considering a good polarizer costs over $200. The only catch that you can't use a step-up ring and a lens hood at the same time. A step-up ring costs about $12, so if you buy 77mm filters and have a 58mm, 67mm and 77mm lens, you need 2 step-up rings: 58->77 and 67->77. Instead, I buy my filters in the largest size (77mm usually) and have step-up rings to bridge the gap. This is the thread size which means you can attach that size of filter directly. Some specialty lenses do not accept filters, in which case you won't find any markings. As per other answers, it is usually marked with the ⌀ symbol on the front and, if not, on the barrel.
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