Tagged with optics - Personal View Talks http://personal-view.com/talks/discussions/tagged/optics/feed.rss Tue, 05 Nov 24 06:44:27 +0000 Tagged with optics - Personal View Talks en-CA 25-100mm T2.9 Laowa OOOM Cine Lightweight Zoom http://personal-view.com/talks/discussion/20481/25-100mm-t2.9-laowa-ooom-cine-lightweight-zoom Fri, 21 Sep 2018 10:55:41 +0000 fosterchen 20481@/talks/discussions image

Laowa OOOM Cine lightweight zoom is the first professional cinema style zoom lens offered by Venus Optics.
The lens features a wide 25-100mm zoom range, making it a one-size-fits-all lens for different types of productions.

Unlike some cine lens in the market which were re-engineered from a photo zoom lens, Laowa OOOM Cine series is designed for digital cinematography in the first place. It is truly parfocal, meaning the focus will never shift when you zoom in or zoom back out. It is designed to have nearly zero focus breathing throughout the whole zoom range. The aperture remains fixed at t/2.9 at all focal lengths.

It is built with the true cinema level mechanics. It comes with a stepless, t-stop independent aperture ring with an industry standard 0.8 mod /32 pitch gears.  The 270° rotation flow provides room or precise focus pulls and the iris is clickless, enabling smooth iris pulls. The lens weighs only 2.16 pounds, which is fairly light for a cinema zoom that holds focus and aperture throughout the focal length range.

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FS: Anamorphic Lenses [Panasonic, Century and Isco] http://personal-view.com/talks/discussion/8029/fs-anamorphic-lenses-panasonic-century-and-isco Sat, 07 Sep 2013 03:46:02 +0000 tferradans 8029@/talks/discussions Hey guys! Over the last year I've experimented a lot of different anamorphic lenses, and now has come the time to sell the ones I won't be using, and keep my favorites! I'm new to this forum, but I'm an active member, and have already sold a lot of gear there. I'm from Brazil. :)

I only accept PayPal. Taxes and shipping are my responsibility. If interested, send me an email! ferradans@gmail.com

1 - Century Optics Bayo 58mm. (1.33x stretch, focus through)

Hardest version of the Century to get, this one has 58mm rear threads. Glass is in perfect condition, no haze, scratches or dust. It comes with front and rear caps. Won't go as wide as the Panasonic, but it's perfectly fine at 35mm on Full Frame, no vignetting at all, and corner sharpness is much better.

The focusing process uses only the taking lens, no double-focus nightmare here. Blueish-futuristic flares, stretches out perfectly to 2.35:1 from a 16:9 HD image.

SOLD

Century 58mm photos (this sale doesn't include redstan clamp) http://www.eoshd.com/comments/gallery/album/52-century-optics-169-58mm/

2 - Panasonic LA7200 + Extras. (1.33x stretch, focus through)

I've modded this one hard, to fit every need. Now I'm moving towards LOMOs and would be sad to let this baby in the locker, gathering dust. I've machined a custom front for it, creating 105mm filter threads for attaching big diopters - which are somewhat hard to come across.

The glass is in perfect condition, no haze, fungus, scratches or chips this time. Rear thread is secured with Redstan's clamp, with 67mm threads, closest pairing possible with the taking lens. I'm including front and rear caps - not the original ones - and the original lens pouch. As everyone already knows, it's focus through, allows you to rack focus on the taking lens and go extra wide-angle at the same time. Has some problems regarding corner sharpness, but I think it's awesome.

I'm including in this kit a custom-made filter holder for 4.5" diopters, and three of these: +0.5, +1 and +2, Tiffen, in perfect shape. This way, you won't need anything else in order to start shooting with this lens, even at the widest lenses and apertures. This size of glass is very hard to find, and this adapter doesn't even have a copy. Single unit!

US$1250 shipped (LA7200 + redstan clamp + front clamp with 105mm threads + custom adapter 105mm to 4.5" + Diopter kit (+0.5, +1 and +2)

LA7200 photos http://www.eoshd.com/comments/gallery/album/85-panasonic-ag-la7200-clamps/

3 - Isco Widescreen 2000. (1.5x stretch, focus through)

A nice lens from the Isco family, this one isn't single focus as the Iscoramas, or double focus as the modern ISCO glass. It has a fixed focus distance, like Century, Optex and Panasonic, and all the focusing is done on the taking lens. In order to achieve closer focus, you must use close ups. I got this one off ebay about six months back, and it came with a 55mm clamp missing a screw (replaced and in perfect working condition) and a 67mm filter thread epoxied to the front of the lens. I tested it a lot to see if this ring wouldn't come off during shooting, but it's really solid. I added a 67-72mm step up at the front and a 52-55mm step up at the back (both can be easily unscrewed off). Lens is MultiCoated, so, unless you're working like this, no crazy flares.

I must inform that the rear element has some bad looking lens separation. It shows up a bit in the last photo in the link below, but it doesn't seem to affect image quality at all. When you point a badass light source directly INTO the lens (like a LED flashlight), the clipping white area is a bit bigger than it should, since the light bounces through the separation. I asked Redstan about it and he said that even bad looking like that, wouldn't affect image quality at all. Besides this, lens has no haze, fungus or scratches.

Included here is a Soligor pouch in which the lens fits neatly inside, both front and rear caps (72mm and 52mm respectively). Sitting around on my desk there's also a Sigma +1.6 62mm achromatic diopter that I'm putting into this kit as well. It comes with the original jewel case. and has no marks on the glass.

SOLD

Isco Widescreen 2000 photos http://www.eoshd.com/comments/gallery/album/54-isco-wide-screen-2000-mc/

More technical info about the Isco Widescreen 2000 https://docs.google.com/document/d/1n1lEdywTsilF7KFuBif-yzuIqd8RPpwM-4EjYCDFawY/

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Dog Schidt Optics by Flare Factory 58's http://personal-view.com/talks/discussion/6424/dog-schidt-optics-by-flare-factory-58s Mon, 18 Mar 2013 00:38:53 +0000 Manu4Vendetta 6424@/talks/discussions Vintage 58mm f2 lens based on a classic 1960's Zeiss optical design.

For mount Canon EF, Nikon, Sony E-Mount, M43, Sony Alpha/Minolta, Arri PL.

We hand machine each lens and apply various cool modifications to add extra character to your pictures or movies. The lenses are available in various styles. Please see our online video samples and our PDF, then choose your style! If unsure just let us know what video sample you like best and we will send you the right configuration :-

http://www.43rumors.com/no-joke-new-dog-shits-optics/

http://www.etsy.com/listing/126095702/flare-factory-58-dslr-mount?

http://www.etsy.com/listing/126095702/flare-factory-58-dslr-mount?

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Century Optics "Night-Hawk" Lenses: 25mm f/0.95, 50mm f/1.4, 75mm f/1.4 http://personal-view.com/talks/discussion/6073/century-optics-night-hawk-lenses-25mm-f0.95-50mm-f1.4-75mm-f1.4 Sun, 10 Feb 2013 00:41:49 +0000 IvanUskokovic 6073@/talks/discussions Does anybody have any information regarding old 16mm "Night-Hawk" lenses potentially manufactured by Century Optics?

25mm f/0.95, 50mm f/1.4, 75mm f/1.4

Your help in creating a reference to these lenses is much appreciated.

Thanks!

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