ken
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Posts posted by ken
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Sample pictures of ISCO integrated anamorphic lens with EF100 F2 lens.
download address, f3.2 & f5.6:
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I think because 16H can go wider, if use the same prime lens, it shows less distortion. So to reduce distortion, just don't use up to anamorphic lens's edge, leave some space. For 16H, is still wide enough. So I always think wide angle is most important factor to choose a project lens. That is 16h's advantage.
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So you would say that kowa for bell and howell is same resolution as Schneider just that the look is different. And would you go with schneider over kowa. Just asking since i am think to buy just one lens to have for life ;) but i am really leaning toward kowa but 600 to 700 dollars over schneider which can be bought for 200.
IMO, shorter is better. So Kowa 16H (or compatible) is the best choice if affordable. If want cheap one, 1st ISCO integrated lens, 2nd Schneider's.
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Yup, got exact same one on my desk. Sharpest anamorphic I have tested out of Kowa, Singer, and a few others. Even the edges are sharp. No other projector lens anamorphic can beat it for resolution I don't think. Focusing system is lame, but if you are doing fixed shots, who cares :P
Because Schneider's glasses are used for 35mm projectors, and size is bigger than Kowa & Singer, which are used for 16mm projectors. If you compare it with ISCO High Definition Attachment (left one in my pictures), Schneider might not be the winner.
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In terms of sharpness, maybe resolution is a better word, ISCO and Schneider lenses made within 10-20 years recently, IMO they have the same level, even Kowa and Sankor, just size matters.
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Thanks for that info would you know what schneiders focus dawn to? and is this then lens we are talking about. Last image is from schneiders but to me looks the same
Thanks for help much appreciated
This one and previous first one are basically the same optics, minimum 3m/10ft. But these lenses are not convenient to focus if directly use, unless use that new focus module. I mods like this.
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I have a 1.5x extra, if interested, pm please.
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I think since this new version launched, the gallary got problems, cannot upload images, always said server errors.
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Imo, first need to consider the taking lens front diameter. 16h is 50mm. So taking lens filter thread is better not bigger too much. 55 & 58mm are the best. 62mm is still usable. More than 72mm might have difficulty. So usually is not easy to use large aperture lens. Small aperture lens may get wider angle view. Especially, if using zoom lens, you will loose some wide angle.
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Through some very basic tested on other 1.33x lens, I was unable to reduce CA, but could make edge looked sharper.
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I had it on the BMCC with a Canon EF 35L for the taking lens.
Do you feel CA issue?
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I think usually CA caused by too wide angle lens taken and fix focus. If anamorphic lens is focusable, everything is OK.
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If not push/pull way, looks there is two rings, front one rotating to lock/unlock.
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I don't know how is yours rule. To me, only interested in the length is less than diameter one. :)
That means possible wider than 16H, maybe only 2x lens is "length<diameter".
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It's among the best animorphics. Only the Ultrastar-type lenses are sharper, and they can't go as wide FOV-wise.
Totally agree.
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If you're not fussed about Dual Focus, then look at the following 2x anamorphics:
Kowa for Bell&Howell - this is one of the best quality lenses in terms of glass (definitely on a par with an Iscorama).
Kowa Prominar 8Z or 16H - these are the same as above, but not as good glass.
Sankor (Singer) 16D - this is the cheapest & not as sharp as the above lenses, has blue flares.
(These 4 lenses have big rear elements, which gives you more choice with the taking lenses you can use)
2 Others to consider:
Iscomorphot 8/2x - made by Isco-Gottingen (same firm as Iscorama), small & Very Sharp (sharper than an Iscorama), but its a fixed focus lens @ 4m (so you'll need diopters). This can be had for under £300.
Isco Widescreen 2000 MC 1.5x - Bigger brother of Iscomorphot, but eventhough its a fixed focus @ 5m, if you stop down the taking lens to f4/5.6 you can rack focus. This is about £500.
There are those big heavy colourful lens beasts as well, but they are...how should I put it...cheap & too clinical for my tastes.
But here said
(ELMOSCOPE-II) much smaller run than kowa bell howell better quality control.
it is an 8z that would go through additional tests by elmo.
elmo made the best ever cine projector so they made sure all the optics where the best they could be. -
Just find step up/down rings. This lens rear mount is 34mm. Smaller front glasses would work. I think FL needs 70mm(35mm equ) or more.
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What does the letters stand for, do you know?
Is it just to mark how wide the lens would go? And is it similar or exactly the same for all the other anamorphic? (Sankor 16c vs 16f for an example, compare to Kowa 16-H and the others)
No idea. I guess just starting from A.
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Well, if I am correct, what you are supposed to do is set the anamorphic to infinity, then the Focus module to 1 meter, and then focus using you primary lens until the image is sharp. Once that is done, you can switch out the lens, and do so with another lens that you can swap on the camera, since the anamorphic lens and focus module are separate. for me it seems, all you would need to do is calibrate several lenses beforehand, tape the focus ring so it doesnt shift when not attached, and then you can quick swap them out! On my 7D I can go as low as 50mm before I get some inside the barrel action. And really, when you think about it, 50 divided by the 2x "wider" field of view, you have a 25 mm lens, then multiply the crop factor, 1.6, and you get an 40mm lens, which imo, is plenty wide. Slap on an 85mm lens and that gets you a 65mm field of view.
Honestly, this is important too, since you are not focusing "with" the base anamorphic, the image has no chance of changing its field of view when rack focusing, something the high end Lomo's and even my SLR magic do.
Video:
Pay attention to the edges.
Looks there is a weird distortion while focusing changed. Does the ISCORAMA do the same way?
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@ken
any advice on what diopter to get for that lens.
THX
Sorry, never used that. Looks there is no standard filter thread. You might need to DIY a little bit. But I use 82mm cap can fit, so filter size needs to be bigger than that.
enny's reference is good point.
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IMO, basically 16D & 16H have no difference of optics in terms of quality or sharpness, because they are made by KOWA. But in projector lenses world, widest is king, has more value. So 16H > ISCO integrated > 16A-B-C-D-F-S....
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Does any body have any info on this lens any good as in what is the closest that it will focus to.
Thanks guys
The good is its HD resolution. Weight is 1.2kg.
Closest focus marks as 17ft/5m.
I think this lens might be used for 70mm film projector, it could be used up to medium format cameras, too big for M43. For FF uses, it needs 100mm or above taking lens. IMO, in 90% case use, ISCO integrated lens is better than it, wider, lighter, the resolution also matches taking lens.
BTW, this is my first anamorphic lens, got it @ $120, local pickup. I will still keep it forever.
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IMO, Sankor 16f is only suitable for M43 camera(rear mount size 43mm, no thread, front 52mm thread is not standard, 0.5mm?) , taking lens above @ FL 135mm(35mm equ). Eiki 16F has a little advantage, which the 52mm thread is standard(0.75mm?), fits common filters. 16F price is over $300. I would like to use $100-150 ISCO integrated lens, which is wider, perfect @100mm, or even @85mm, 35mm equ FL. 16F's only advantage is the non-rotation filter thread. ISCO lens can be modified too.
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WOW, worthy?
Iscorama 54 Mounting
In: Cameras
Posted
I would avoid using any over 500g, or max 600g anamorphic lens, whatever how good it is.