Clark Nikolai Posted Tuesday at 03:06 PM Share Posted Tuesday at 03:06 PM 34 minutes ago, kye said: Obviously the shape isn't ideal, as I should round it slightly and especially round the corners, but as a proof of concept, this looks promising. I really like this shape in the bokeh. It reminds me of 1950s graphic designs. kye 1 Link to comment Share on other sites More sharing options...
kye Posted 15 hours ago Author Share Posted 15 hours ago 9 hours ago, eatstoomuchjam said: If that's the direction you're going, have you considered a Blazar Mantis? It's a 1.33x squeeze and has an internal oval aperture to give what they claim to be closer to a 2x bokeh look. I've looked at them a few times and I personally find their bokeh to be a turnoff, but a bunch of people seem to like them. Otherwise, it might be worth looking into whether any currently-shipping lenses allow a waterhouse aperture. I had a modern Petzval for a bit that did. If it's a waterhouse, you could put tape over the biggest and cut out any shape you want for the bokeh. I think lensbaby have one or more lenses which have both a standard round aperture and a hole for inserting bokeh-shaping cutouts. I might even have one around year somewhere from around 12 years ago that I've only used a few times - not for the bokeh cutout, but because the front element of it is on something like a ball head so it can be unlocked and moved freely around to get all Scheimpflug-gy(?). The Blazar Mantis is an interesting lens, and does reduce the weight from 1.3kg down to 800g but the SB+50/1.8 is only 350g, so pretty hard to beat. Plus the Mantis is probably 20-50x more expensive! The Lensbaby Double Glass has a replaceable aperture, but is 50mm F2.8 so on MFT equivalent to a 100mm F5.6 so pretty slow when compared to the Voigt+Sirui combo which is equivalent to a 68mm F1.5, or the SB+50/1.8 which is equivalent to a 71mm F2.6. I'm actually quite impressed at how much stretch and how consistent it was with the insert at the rear of the lens. I'm guessing this is where a 3D printer would come in perfectly, as I could rapid-prototype a completely custom insert for it. No matter, I'm sure I can do a reasonable job with some cardboard and a sharp knife. eatstoomuchjam 1 Link to comment Share on other sites More sharing options...
eatstoomuchjam Posted 14 hours ago Share Posted 14 hours ago 1 hour ago, kye said: The Lensbaby Double Glass has a replaceable aperture, but is 50mm F2.8 so on MFT equivalent to a 100mm F5.6 so pretty slow when compared to the Voigt+Sirui combo which is equivalent to a 68mm F1.5, or the SB+50/1.8 which is equivalent to a 71mm F2.6. I'd have to dig mine out to see what it is - but it's EF mount so usable on a speed booster. 🙂 (But still more expensive than cutting some cardboard) kye 1 Link to comment Share on other sites More sharing options...
kye Posted 5 hours ago Author Share Posted 5 hours ago 9 hours ago, eatstoomuchjam said: I'd have to dig mine out to see what it is - but it's EF mount so usable on a speed booster. 🙂 (But still more expensive than cutting some cardboard) It's funny, but I look at "what if" scenarios for lenses about once a fortnight and I've repeatedly considered getting an EF-MFT speed booster and I never found a reason for it. The EF lens options never met the parameters of whatever it was that I was contemplating doing, so I never bought one. On the other hand, my M42-MFT speed booster remains in use continually. Every time I 'tidy up' my lenses and put the ones I don't use into a box this always seems to stay out for one reason or another. I always seem to be learning something about images or shooting or something, and will look at my lens collection from a completely new perspective, and the MFT system and M42 system (for adapting FF lenses) always seems to be the winner. eatstoomuchjam 1 Link to comment Share on other sites More sharing options...
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