Jump to content
Tito Ferradans

The Diopter Thread.

Recommended Posts

Hi all, I need a negative diopter(may be -0.5~2) for my anamorphic lens.  I have tested my glasses are almost suitable to use.  Beside glasses shop, which I am not sure the quality, does any other such diopter lens made and sell?

BTW, I found the negative diopter is perfect for micro anamorphic lens, which is shorter then normal.  Adding a negative diopter at front, make it possible to adjust to infinity, and get wider angle.  Just opposite to use as + diopter.

Share this post


Link to post
Share on other sites
EOSHD Pro Color for Sony cameras EOSHD Pro LOG for Sony CamerasEOSHD C-LOG and Film Profiles for All Canon DSLRs

Hi all, I need a negative diopter(may be -0.5~2) for my anamorphic lens.  I have tested my glasses are almost suitable to use.  Beside glasses shop, which I am not sure the quality, does any other such diopter lens made and sell?

BTW, I found the negative diopter is perfect for micro anamorphic lens, which is shorter then normal.  Adding a negative diopter at front, make it possible to adjust to infinity, and get wider angle.  Just opposite to use as + diopter.

http://www.ebay.com/itm/Kodak-Telek-Lens-Series-6-VI-2-/121433118812?pt=Camera_Filters&hash=item1c45fa585c

Give that a go. Teleks are no longer made but have varying negative powers.

Share this post


Link to post
Share on other sites

Forgive my total ignorance on close up filters, I've just found these HOYA close up in my father's wardrobe,  they are quite old, my father can't remember exactly what year, maybe around 1978-80.

Anyway I have managed to put the +1 in front of my sankor 16D and the result are not bad at all as you can see from the sceenshot

Could you kindly tell more about those close ups filters, are they any good to use with anamorphic lens? or are just for macro stuff? the size it's a 55mm so I had to put a step up ring.

Thanks in advance

 

'>

'>

Share this post


Link to post
Share on other sites

Is there math for achromatic lenses? Also for achromatic lenses does the lens just have one focus and that is it, or can I adjust the focus? Also has anyone tested this diopter: 

Schneider 138mm Achromat +1 Diopter Glass Lens?

 

Sorry for the delay, buddy!

The math is exactly the same as for regular diopters, they produce much higher quality images!

 

I've used the 4 1/2 inches series, by Schneider, as well as Series 9, and results were pretty good. Very little edge blurring. So I'd guess the 138mm doesn't do much difference. Due to it's huge size, you might even get rid of the bad looking areas, since they're always on the edge of the glass. :D

 

Forgive my total ignorance on close up filters, I've just found these HOYA close up in my father's wardrobe,  they are quite old, my father can't remember exactly what year, maybe around 1978-80.

Anyway I have managed to put the +1 in front of my sankor 16D and the result are not bad at all as you can see from the sceenshot

Could you kindly tell more about those close ups filters, are they any good to use with anamorphic lens? or are just for macro stuff? the size it's a 55mm so I had to put a step up ring.

Thanks in advance

 

'>

'>

 

Comurit, the diopters we use for anamorphics are the very same used for macro stuff, so if they work on your Sankor, you're good. The downside of these kits is they usually have default +1, +2, +4 filters. The +1 is pretty handy for nice close ups, but the +2 and +4 are so extreme they're very rarely used. A good thing would be to get a +0.5, which has a lower magnifying power and bring your focus range just a touch closer than the anamorphic's limit.

 

by the way, pretty shot with the close up. :)

 

 

Not exactly cheap, but cheaper than the prices they had a couple months back. It was impossible to find anything cheaper than $450. Good to see the hype is wearing off.

Share this post


Link to post
Share on other sites

Forgive me if this is a stupid question as I still don't completely understand the topic. I know that achromatic filters are of much higher quality, but also much higher price. So how usable are normal macro filters like the cheap Vivitar ones or these even cheaper ones from China:

 

http://www.ebay.com/itm/52mm-52-Closeup-Close-Up-Macro-1-2-4-10-Filter-Kit-/300932412048?pt=Camera_Filters&hash=item4610f83290

 

Also, what size would be best to avoid distortion at the corners?

 

Cheap macro filters are as good as regular diopters so, yes, they are usable. This whole thread is focused on them, as achromatics are still rare. To avoid corner distortion, get the biggest size you can! That was easy. hahaha :D

 

i have a question about those 4 1/2" round tiffen diopters.

 what adapter will i need if i want use these filters with an isco54,

i saw this adapter rings on ebay, and want to know if these are the correct adapters for use with the isco54.

 

http://www.ebay.com/itm/221282199532?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

 

thanks

 

Wow, I looked for something like that forever. The only weird thing about the link is that it doesn't show the ring that is supposed to hold the 4 1/2 inch filter in place, preventing it from falling off. Did you contact the seller? :)

 

I did develop a DIY solution for this exact problem. Unfortunately I sold it with my Isco54, a couple months back. Mainly, what I did was replicate the way Series 9 filter holders work, but with a much bigger size. This ebay link looks much better, thinner and stronger than mine, though. hahaha

 

Hi guys,

I owned a LA7200 and currently researching ways to have diopter rig on it.

I found the easy solution here; http://www.stronzvanderploeg.net/anamorphic-shooting-with-the-la7200-part-3/#comment-112

Which is buying 86mm diopters ($19) ; http://www.ebay.com/itm/310829145416

And then use a step down ring of 105mm to 86mm, that the 105mm sits perfectly at the LA7200.

But the problem is; that it's impossible to find that step down.

My question is would the step up 86mm-105mm ($7) work? http://www.ebay.com/itm/151037727008

I've asked the seller of the Vivitar Series 1 diopters and they said the diopters do have Front threads on them, thus I can just screw them on the step-up rings.

Guys, you think it'll work? Or is there any better solution/budget that guys can recommend me to get my LA7200 to work properly?

Thanks in advance...

 

I followed the same path, but got stuck trying to find the adapter ring. I wouldn't go with the reverse size. That way, your filters will be facing the wrong way, and performance is much lower. Some might not even fit or work if inversed. Be careful.

 

In the end, I made my own piece, for attaching 105mm filters, and worked up/down from there.

'>

Share this post


Link to post
Share on other sites

Sorry for the delay, buddy!

The math is exactly the same as for regular diopters, they produce much higher quality images!

 

I've used the 4 1/2 inches series, by Schneider, as well as Series 9, and results were pretty good. Very little edge blurring. So I'd guess the 138mm doesn't do much difference. Due to it's huge size, you might even get rid of the bad looking areas, since they're always on the edge of the glass. :D

 

 

Comurit, the diopters we use for anamorphics are the very same used for macro stuff, so if they work on your Sankor, you're good. The downside of these kits is they usually have default +1, +2, +4 filters. The +1 is pretty handy for nice close ups, but the +2 and +4 are so extreme they're very rarely used. A good thing would be to get a +0.5, which has a lower magnifying power and bring your focus range just a touch closer than the anamorphic's limit.

 

by the way, pretty shot with the close up. :)

 

 

Not exactly cheap, but cheaper than the prices they had a couple months back. It was impossible to find anything cheaper than $450. Good to see the hype is wearing off.

Thanks Ferradans, you are right, the + 1 it's ok, the others are too extreme, could you kindly advice me a + 0,5 one to go for my sankor.

Obligado!!!!

Share this post


Link to post
Share on other sites

hello guys, could you kindly advice me a good and cheap +0,5  and +1 diopters for this lens?

I would love to get the tokina but it's to expensive for me at the moment.

Any advice will be great?

Thanks

 

2zjf86g.jpgI have tried with a hoya +1 but I am not really satisfied with the result

 

250uvxd.jpg

Share this post


Link to post
Share on other sites

hello guys, could you kindly advice me a good and cheap +0,5  and +1 diopters for this lens?

I would love to get the tokina but it's to expensive for me at the moment.

Any advice will be great?

Thanks

 

Try these:

 

nikon 52mm +0.7

http://www.ebay.com/itm/Nikon-Close-up-Attachment-No-0-/161437808089

 

62mm +0.5mm

http://www.ebay.com/itm/Izumar-Nahlinse-0-5-62mm-/380988682376

 

tamron 72mm +0.5 -2 years ago someone was selling this at 75 euros http://www.ebay.ie/itm/220932585934

http://www.ebay.com/itm/TAMRON-CLOSE-UP-ADAPTOR-LENS-72mm-FOR-MACRO-/111477604961

 

or you can adapt these:

 

tamron +0.5 72mm

http://www.ebay.com/itm/Tamron-72mm-Close-Up-Adapter-Lens-for-28-200mm-F3-8-5-6-Camera-Lens-/291240881414

 

Carl Zeiss +0.5

http://www.ebay.com/itm/Hasselblad-Carl-Zeiss-T-Proxar-f-2m-B57-Close-Up-Camera-Circular-Filter-/261602473456

 

this is the best:

 

Leica elpro ACHROMAT 55mm +0.75 (30 euros shipping included!)

http://www.ebay.com/itm/LEITZ-LEICA-ELPRO-4-Nr-16544-MIT-ETUI-vi025-/291261045291

 

 

 

;)

Share this post


Link to post
Share on other sites

Hi solo, could you please introduce some negative 72mm diopter lens? :) thanks.

I got a Kodak VII, the biggest one, still smaller then 52mm.

Share this post


Link to post
Share on other sites

Try these:

 

tamron 72mm +0.5 -2 years ago someone was selling this at 75 euros http://www.ebay.ie/itm/220932585934

http://www.ebay.com/itm/TAMRON-CLOSE-UP-ADAPTOR-LENS-72mm-FOR-MACRO-/111477604961

this is the best:

Leica elpro ACHROMAT 55mm +0.75 (30 euros shipping included!)

http://www.ebay.com/itm/LEITZ-LEICA-ELPRO-4-Nr-16544-MIT-ETUI-vi025-/291261045291

 

 

 

;)

I bought the Leica  elpro achromat 55mm +0.75 and the Tamaron 72mm +0,5 from japan.

Is the Tamaron 72mm +0,5 achromat? just wondering.

Thank you so much for your advice.

Share this post


Link to post
Share on other sites

I bought the Leica  elpro achromat 55mm +0.75 and the Tamaron 72mm +0,5 from japan.

Is the Tamaron 72mm +0,5 achromat? just wondering.

Thank you so much for your advice.

 

Nop. 

 

Pls read the description from the old ebay link I posted (I think the seller is Kostas, a user from this forum and he knows what he's talking about):

 

"This one is excellent quality. Produced by Tamron in Japan, it has an unquestionable optical quality.

 
Note: This is not an achromatic doublet diopter like the infamous (and more expensive) Tokina +0.4, but honestly you will not notice a significant difference in image quality. 
 
First picture is the closer focus distance of the Iscorama with a 70mm lens on full frame:
 
 
Second picture is the closer focus distance of the Iscorama with a + (0.5) diopter with the same lens on full frame:
 
 
 
;)

Share this post


Link to post
Share on other sites

 

Nop. 

 

Pls read the description from the old ebay link I posted (I think the seller is Kostas, a user from this forum and he knows what he's talking about):

 

"This one is excellent quality. Produced by Tamron in Japan, it has an unquestionable optical quality.

 
Note: This is not an achromatic doublet diopter like the infamous (and more expensive) Tokina +0.4, but honestly you will not notice a significant difference in image quality. 
 
First picture is the closer focus distance of the Iscorama with a 70mm lens on full frame:
 
 
Second picture is the closer focus distance of the Iscorama with a + (0.5) diopter with the same lens on full frame:
 
 
 
;)

 

Thank you so much!!!

Share this post


Link to post
Share on other sites

Hi solo, could you please introduce some negative 72mm diopter lens? :) thanks.

I got a Kodak VII, the biggest one, still smaller then 52mm.

 

Apart from Kodak telek and Zeiss distar etc there is no a negative version of a close-up filter  :( 

 

You can find some negative lenses here: http://www.ebay.de/usr/logoxxl-gmbh

 

Achromat 75mm -3.5 Diopter

http://www.ebay.de/itm/Grose-HQ-spezial-Linse-Achromat-konvex-konkav-75mm-3-5-Dioptrien-f-286mm-/181269965491

 

 

Or

 

 

Why not start with this kit for experimenting?

 

Six 75mm lenses: 3 positive (+2, +3, +5) and 3 negative (-2, -3, -5) for us $16.00 !!!

 

http://www.ebay.com/itm/Optical-Glass-Lens-Set-3-Dbl-Convex-3-Dbl-Concave-75mm-Dia-20-30-50cm-FL-/281366510539

 

 

;) 

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Similar Content

    • By DIGICHombre
      eBay Listing: http://www.ebay.com/itm/112426475899?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649
      Superb close focus lens filter / diopter. Size 72mm filter thread. Increases minimum focus distance in front of lens. Same result as a macro lens or macro extension tube. Purchased 2, selling 2. Both in excellent condition. No scratches or dings. Threads perfectly in tact.
      These are the non-bayonet A9FB version, that come in 72mm filter size. 
      I sought this filter out specifically for shooting video on modified anamorphic lens adapters. Vintage anamorphic lenses typically are handicapped by close focus distances of over 1 meter or more. Stacking 1 or more close-up diopters on the end of your anamorphic can decrease this minimum focus distance. Stacking multiple diopters on top of one another will minimize this close-up focus distance even further, without noticeable distortion.
      +1 lens filter equals roughly .8 meter minimum focus distance.
      +2 lens filter equals roughly .5 meter minimum focus distance.
      These are also wide & slim enough o they don't produce a dark vignette in the edge of the frame. I used step-up/step-down rings to mount to my lens.
      *Be aware you won't be able to rack focus very far, or focus to infinity with this on. It is not a one size fits all solution.
      I'm told these adapters replicate what a Tokina +.4 achromat diopter can do at much less the price.
      Payment via PayPal only. Questions welcome.
       


    • By EnzoNgu
      Hi Guys,
                   I'm looking to purchase a set of Voigtlander 95mm Focar A or B diopters to use with an Iscorama 54. Hoping someone has a set for sale as Ebay hasn't listed any lately. I just joined the forum after reading the posts for quite some time. Thanks in advance.
      -Enzo
    • By brianmcall
      Hey everyone, I'm looking to buy a Helios 44m-7 lens.  I don't trust ebay with this lens as it looks like most are switched plate fakes, unless you know of a reputable seller with one.  Also looking to pick up a Tokina +0.4 Diopter, if anyone would like to part with theirs.  Thanks!
    • By Sean Keen
      Selling some lomo and foton diopters, photos  on request 
       
    • By harharj
      Can some explain to me why +0.4 and +0.5 diopters are more desirable than +1 diopters? Are +1 diopters terrible? I would assume using +1 would grant the user the the option of being able to shoot at the distance a +0.5 allows and closer since its +1. Maybe someone can enlighten me on the pros and cons of each diopter strength.
×
×
  • Create New...