Sort-of like the Sony STF lenses only give effective apodization wider than f/8. A fixed insert would have been sized so wide open you got a square, but stopped down it behaved normally. The photos don't load up in that thread but do load when you click on them individually. I found this detailed guide on how to modify it: If this would have been done with a fixed insert, would the size be limited to only the size of the insert, or am I misunderstanding what you meant? Of course it's what we would call a "specialty lens" but I imagine this could make some very interesting images in spring-time. I was very surprised too by the overall quality of the conversion, and the condition of the lens, especially considering it was just $30 or so incl. Maximum sharpness is attained around f/5.6f/8, but to use this lens at anything other than f/2 feels like a waste. Still, I have to admit somebody did a really good job on that square iris. Note that the adapter you use will likely feel cheap and plastic-y in comparison to the Helios 44-4 The aperture ring holds firmly in place, and the focus ring is nice and smooth. Youll find new or used products in Helios 44-2 Camera Lenses on eBay. Manual Focus -De-clicked Aperture Ring Beautiful Swirly Bokeh Classic Vintage Lens This is an actual vintage lens from the 1960s made in the USSR. All versions though were based on the amazing Zeiss’s Biotar 58mm, which explains why Helios 58mm is so well regarded. There are many versions of this lens with the 44-2 model being the most common. It is M42 mount, meaning any adaption to the likes of Canon EF involves a screw adaptor (easy to unscrew). Best vintage lens: small, cheap, far from perfect, but incredible in so many ways. Two of the Helios lenses have become legendary for their extremely characterful rendering of bokeh, the first being the relatively common 58mm f/2.0 and the second being the much rarer 85mm. The problem many filmmakers have found with this lens is adapting it successfully for video. which, by the way, is the more versatile way to do this (and the lens doesn't need to be modified if you use the stop in front of the lens). Shop eBay for great deals on Helios 44-2 Camera Lenses. The 44-2 has become a very popular lens in the vintage market, known for it’s swirly-bokeh backgrounds. È il caso dell’Helios 44, obiettivo 58mm con diaframma massimo f/2.0, che in questi ultimi anni è diventato uno dei segreti meglio custoditi tra fotografi e videomaker, un bell’obiettivo economico con cui cominciare a lavorare sui diaframmi, sul bokeh, e sulla comprensione del fatto che non sempre le lenti più nuove sono quelle più. I figured it would either be a fixed square insert or a removable Waterhouse stop. To celebrate if you succeed, or relax if you don’t.Ingenius! I can't wrap my head around how they modified the blades to open and close in that way. You can even buy some rubber discs on eBay made specially on purpose – Some people are using reversed lens cover and piece of chewing gum. This video shows how to reverse the front element. There are many ideas on the web how to make your own opener, I am using a plumber rubber tape (very elastic tape made of rubber, that doesn’t leave marks) and put it around anything that has slightly smaller diameter than the lens top. The Helios 44-2 is a special bokeh lens, but it gets even more amazing when you reverse the front element. compact interesting bokeh inexpensive easy to find As all lenses that are based on the Biotar formula, the Helios 44 has an interesting twirling bokeh. (Yeah, what the hell is lens opener? You will need to unscrew protective rim on the front of the lens, which is keeping front lens element tight on its place.
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