Tito Ferradans

DPI doesn't have any meaning with digital files. That is a (common) misunderstanding. The DPI only has meaning when you print, since it defines the amount of dots per inch. If you open a random file in Photoshop, go to Image Size and desable resampling. You can make a 100x100 pixel image with 3000 dpi, but it will still have 100x100 pixels. The DPI just changes the size of the print.

damn. :(

thanks for the explanation!

anyway, scaling up the raw files still holds up great. hahaha

ps - at least, it might be useful if you want to print your frames for something! hahahah

Stanley; you could buy a cheap 77mm UV filter (break the glass) or a 82mm-77mm step down ring, and solder this ring with some kind of 'holder' to a rod clamp.

 

Or buy something like this:

 

Superglue the Step down / emtpy UV filter to the top of the Lens Support. The height is adjustable :)

I thought about this, but it might be too expensive, no? :P

I was thinking this could be an auxiliary/extra content to the anamorphic shooter's guide. :P
if the popular lenses make it into the next edition, it would be great. hahaha

Hello, I think part of this question is related to diopters so I think I'd post. Hope it's oaky. I've been searching for a solution but haven't found any discussion. Is it possible to mount 77mm Hoya diopters on 15mm rods in front of a lens? 

 

I've got a huge Rectimascop 48/2 X II. This version has a rare 3 meter minimum focus distance rather than 6 meter from what I've seen online. The front element is too large to use a filter clamp. So I'm trying to see if there is a way to mount my Hoya diopters or filters separately on 15mm rods. Any suggestions?

Woah... I don't think that would even be safe... I mean, to get it fixed/stuck to something, it would have to resemble a clamp, so, I'd risk saying you're probably better improvising something to stick to the lens.

Tell me more about the Pentax's, I have never seen the T ones ,,,

I've never seen them either. Sound like good options, though. Low power and big sizes!

Andrews test video is in 1920x1280 (3:2), so 1707x1280 (4:3) would be nice! That would make 3414x1280 with a 2x stretch. Pretty sure it will scale up nicely to 4K.

It becomes EVEN MORE easily scalable since each frame has 240DPI resolution, while a regular RGB frame has only 72DPI. With this "extra" resolution, you can increase the image size without considerable loss of quality. :P

As soon as I get this compiler working again, I'll write a RAW module with anamorphic options for both 1280 and 720 height, and various lenses (2x, 1.5x and 1.33x).

Sorry for the delay, guys. Went all nerd with latest MagicLantern releases and announcements.

Thanks for all the lenses in the list. How many of them do you actually own?

I'll write a quick/cheap and simple guide to make clean pictures with white background so we can use them for each lens.

QuickHitRecord, you mean a google spreadsheet for the whole guide, or just for the lens list?

http://nofilmschool.com/2013/05/1080p-raw-video-canon-5d-mark-iii-anamorphic/

dammit. When I started to write this post, this article wasn't published! (and in the middle of writing I stopped to watch a movie with my girlfriend. hahaha)

well, at least you can see it's my question featured. AHAHAHA!

I believe they're all dual-focus...

I'm pretty sure everyone here has already read something about today's achievements from the MagicLantern team. Finally, RAW recording, non-stop on fast cards.

By what I managed to understand from the code and comments, we CAN use only a portion of the sensor (specific sizes), which is amazing for us anamorphic shooters, isn't it? a1ex's post below explains more clearly what can be done:

http://www.magiclantern.fm/forum/index.php?topic=5247.msg34126#msg34126

With this, we can record 1440x1080px frames, with 2x stretch, and get perfect cinemascope, right?

The sizes can be custom set. :)

I'm still trying to make the compiling part work - having a lot of trouble with this - but as soon as it's good, I'll post updates and samples.

I have a 16-S right here in front of me, and it's much smaller than the 8Z/16-H or Bell & Howell. I think it equals Sankor 16-C.

Tiffen +0.5 Series 9

http://www.ebay.com/itm/300904243849

Tiffen +3 Series 9

http://www.ebay.com/itm/300904238332

I've been looking for these 67mm Pentax for a long time. Only found two, in the same auction, ended a few days earlier. I admit they look interesting.

Dunno if you're already planning it, but the collection-type threads on a gaming forum I used to frequent would often have the author and maintainer re-edit the topmost message(s) in the thread, re-adding relevant information posted in replies to the original message so folks wouldn't have to search through the entire thread.  Otherwise information this dense gets lost and its intended usefulness as a reference resource gets lost with it and the thread dies.

That's exactly what I had in mind. :)

Important stuff on top, regular discussion, opinions, etc below.

Got curious about using a green lens!

http://www.ebay.com/itm/261212368111

Good points. The downside of the forum is that everybody can only edit their own posts. Would be nice if multiple people can tell something about one lens. Especially the popular ones.

Yep, that's true. I'm planning on being the responsible person to collect data from multiple people, creating the first post for every lens, and editing it enough to fulfill the main fields. Below it, everyone can say whatever they want! :D

While making the list, I remembered that many lenses have a 'nickname', or the exact same design has different names (like Sankor and Singer, etc). That should be a good field too. "Also known as:"

Anyway, here's what I could find/remember:

Proskar Ishico 16/2x

Cinevision 1.5x

Izukar Scope 1.5x

Kinoscope 1.5x

Panavision Superama

Elmoscope I

Elmoscope II

Iscorama (the one that detaches from a 50mm prime)

Iscorama 36

Iscorama 42

Iscorama 54

Isco Centavision

Isco Widescreen 2000

Iscomorphot 8/1.5x

Isco Anamorphot 8/1.5x (fixed focus)

Iscomorphot 8/2x

Iscomorphot 16/2x

Isco Video Attachment I

Isco Video Attachment II

Kowa Prominar 16-S

Kowa Prominar 16-H / 8-Z

Kowa Prominar 16-D

Kowa Prominar 16-A

Kowa for Bell & Howell

Kowa C-35 (1.5x)

Bell & Howell Projection Lens

Optex Anamorphic Attachment

Panasonic LA7200

Sun

Hypergonar Hi-Fi 2

Hypergonar S.T.O.P.

Baby Hypergonar

Old Delft Vistascope 8mm

Old Delft Vistascope 16mm

Sankor 16-D

Sankor 16-C

Bolex Moller 8/19/1.5x

Bolex Moller 16/32/1.5x

Bolex Moller 32/1.5x

Bolex Moller 32/2x

Bolex Moller 30/2x

Century Optics 16:9 Ratio Converter (37mm, 52mm, 58mm, Bayo)

Century Optics WS-13SB

Apefos Anamorphic Lens

Dog Schidt Anamorphics

SLR Magic Anamorphic

LOMO Squarefronts

LOMO Roundfronts

Sankor Projection Lens

Schneider Projection Lens

Bausch and Lomb Projection Lens

Isco Ultra-Star Projection Lens

Nice idea. It should definately include pictures (of the lens) and samples taken with the lens!

Maybe recommended taking lenses? with examples?

 

How about making a real Wiki out of it? Don't know how difficult that is.. but you see a lot of custom wiki's around, like the super8wiki you mention, or camerapedia.

 

Looks pretty easy to start one here: http://www.wikia.com/Wikia

It's a good idea to recommend taking lenses, specially those perfect matches.

About the wiki, I think they all look the same, and it's rather hard to find things on them. It's not such a huge project, I think. Also (personal opinion) I'm kind of lazy when it comes to signing up into a new site and all, understanding the codes to write, layout, etc. I mean, everyone is here, and I believe this is the internet-center for anamorphic discussion. I'd like to keep it as simple as possible :P

Finally, below the main (first) post about a lens, we can have all sorts of other posts regarding it, with quick viewing and replying.

I'll start making a list of all lenses I can remember here, and we can add as many as possible (specially if people have them available, for measuring and providing information). Is it a good start?

I have two of those, bought one on marktplaats.nl for 10 euros :) Ordered 2 chinese UV filters for a few euro's, just going to break the glass and superglue the thread to the Tamron (it's not Sigma ;)) filters. This should work fine, I already put it on another 72mm filter (that I don't want to break) and it fits exactly.

I've been waiting to hear this since forever! Relatively cheap 72mm diopters, at last! :)

First, I'd like to apologize for the pun in the title, then, explain what's the catch, to see if anybody is interested.
 
THE greatest advantage of this forum is pretty obvious: everyone is willing to help and answer questions. But it gets kind of dull to answer the same thing numerous times over dozens of threads. Like "do I need rails for that?" "what lens should I buy?", "how can I mount this?", "is it heavy?", "what's the filter size for XYZ lens?" etc...
 
Based on what I read here, almost all frequent users had at least a couple different lenses and knows their advantages and quirks, as well as many important detail about them (which is very hard to find through google). I myself had about ten different anamorphics so far, and still look to test some more.
 
The main idea is to compile all of this data into a series of threads, named according to each lens, so everyone can have easy access to it. Then, use one main thread as index. All threads first/main posts will be constantly updated until every field is filled. (something like this chart - http://super8wiki.com/index.php/Anamorphic_Lenses - but with more useful information).
 
I'm thinking basic information, like:
 
LENS NAME
A couple photos of it (standardized size and resolution) and a link to a more comprehensive gallery.
Maker:
Weight: (in grams and pounds)
Front element size: glass only, in millimeters
Rear element size: glass only, in millimeters
Taking lens minimum focal length (based on Full Frame):
Stretch:
Focusing mode: single focus, dual focus, focus through, etc
Minimum focusing distance:
Mounting solution: Is there a specific clamp for it? Just using stepping rings will do the job? links to custom setups, etc...
Filter thread: size, or solution to create threads (front clamp, gluing rings...)
 
Pros: everything we can come up that is good about it, advantages when compared to other lenses. Like "don't need diopters", very lightweight, sharp edge to edge, flares nicely (this can also be seen as a con), etc...
 
Cons: well, pretty much the opposite of the things above! bad image quality on edges, chromatic aberration, requires tiny apertures, etc...
 
Tricks of the trade / Observations: anything specific regarding working with this particular lens, that wasn't mentioned properly in any of the above fields. Rehousing options (and prices), repairs, mods, etc...
 
Do you guys think there's something missing? I've decided to avoid fields like "score" or "price range", since they change dramatically from time to time, or user to user. Is this a good idea?

the stuff may work but has little soul
that is the modern way
we live in satanic times a new dark age.

Amazing, Tony! hahaha

Anyone knows this lens?

I've seen plenty of them going on ebay during the last six months. Never for high prices. As I never heard of it around here, assumed it wasn't interesting. It looks a bit... long, don't you think?

Isco wars! hahaha

I am looking for LOMO Foton A diopter. Anybody? (For LA7200)

wilco73, I think I'll have one of these in my hands in a few weeks, if you can wait a while. :)

Kowa for B&H is SOLD

I found one.. 10 months to late.. :(

http://***URL removed***/forums/thread/3237571

 

Good to know it exists! Haven't heard of it before.

We should keep our eyes open for this lens! Even if you bought the whole pack, it's still only a bit more than half the price of the Tokina!

Minolta 100-500mm f/8

http://www.ebay.com/itm/111040292525 (ended Mar-31-2013)

If I knew you were going for it, I wouldn't even have placed any bids (the $10 was me). :P

If that information is correct we have two main possibilities around [40-50cm]. The first one is that this is the MINIMUM focus distance, which would mean a diopter around +1. The second option is MAXIMUM focus distance, which equals +2.

I think the first option is more likely to be real, since it would have to be a hell of a shot to need closer focus than 40-50cm.

Forgot to mention its a 10mm Fmount taking lens in cmount and a detachable from Iscorama lens. Super I retesting what do you guys think?

This would be a mix between the 36 and the 50mm detachable versions, since it is single coated (like the 50mm versions) and has a 36mm rear (like the 36). I'd like to get one of these. hahahahaha. It'll go for over 3k, I think (hope - haha).