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How To Use Filters on 7-14!

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  • Antonio Correia
    replied
    Re: How To Use Filters on 7-14!

    Originally posted by Enzojz View Post
    Hello,...I expect to start selling by the end of september.
    Thank you. I hope you announce the sell here.

    Leave a comment:


  • Enzojz
    replied
    Re: How To Use Filters on 7-14!

    Originally posted by Antonio Correia View Post
    Enzojz,
    I am interested in one adapter for my 7-14 f/2.8 lens to be used with a Lee filter with 77mm
    Are the tests done and are you selling the adapters ?
    Thank you !
    Hello,

    The tests are done and there is some known issues under extreme condition. Principaly caused by the transparency of the material it used. However with a 10 stops filter it's ok. I am waiting for a version with better but more expensive material. I think there will be two versions of adapter with different materials.

    I have made a customized filter slot for the adapter, and I can uses 3 filters without dark edge(but without much rotation)

    I expect to start selling by the end of september.

    Leave a comment:


  • Antonio Correia
    replied
    Re: How To Use Filters on 7-14!

    Enzojz,
    I am interested in one adapter for my 7-14 f/2.8 lens to be used with a Lee filter with 77mm
    Are the tests done and are you selling the adapters ?
    Thank you !

    Leave a comment:


  • Enzojz
    replied
    Re: How To Use Filters on 7-14!

    Hello,

    My beta testing opens. Normally it's a working adapter

    If it's interested me, please leave me a Pm on dpreview or reply in this topic:

    dpreview.com/forums/post/56190181

    Leave a comment:


  • Enzojz
    replied
    Re: How To Use Filters on 7-14!

    Originally posted by Rafletcher View Post
    Perhaps some velvet-like material would work as a light seal? And be "slippery" enough to push over the hood without jamming or catching.
    The latest prototype uses glass cloth of seal the rear, however clothes are not easy to cut so I am try one with rubber foam.

    Leave a comment:


  • Rafletcher
    replied
    Re: How To Use Filters on 7-14!

    Originally posted by Enzojz View Post
    I have left about a gap of 1.5mm between the lens hood and the adapter, I am looking for a soft material to fill the gap between them.
    Perhaps some velvet-like material would work as a light seal? And be "slippery" enough to push over the hood without jamming or catching.

    Leave a comment:


  • Enzojz
    replied
    Re: How To Use Filters on 7-14!

    An update to my adapter. You can see the 3DPSlot I am using which is near to perfect.

    dpreview.com/forums/post/56091586

    Leave a comment:


  • Enzojz
    replied
    Re: How To Use Filters on 7-14!

    Originally posted by Philn67 View Post
    Hi Enzo
    Its looking good I like the idea. Interested in updates. Im also looking at another version. A couple of questions, how is the unit secured onto the lens hood, so that there is no movement or risk of it falling off?
    3 layers, I presume you mean, 3 filters? Not sure how? Using the end of the lens hood as the datum/minimum distance for a filter from the element, and the 100mm filters, 2 rails is just about the maximum, and causes vignetting if rotated, so using 3 must make the issue worse. Slimmer rails may help, but the Lee rails seem to be the minimum required, so there is obviously a minimum height possible.
    I have left about a gap of 1.5mm between the lens hood and the adapter, I am looking for a soft material to fill the gap between them.

    For the rail, I bought the one from 3DPideas so that I have 3 filters working(need some modification)

    Leave a comment:


  • Philn67
    replied
    Re: How To Use Filters on 7-14!

    Originally posted by Enzojz View Post
    Hello there,

    A reply under my topic on dpreview leads me here.

    This is my 1st try, I modified the adapter that I made for ZD714, just add a soft layer inside the adapator:

    dpreview.com/forums/post/56013114

    Then my 2nd try, 3D printed prototype

    dpreview.com/forums/post/56062817

    I made some modification on the prototype, it's on the way being made!

    Yes, I confirme with some effort there will be no dark edge.

    I present you this, with this and some little modification effort, you can have 3 layers without dark edge

    3dpideas.es/shop/en/home/19-3dpslots.html
    Hi Enzo
    Its looking good I like the idea. Interested in updates. Im also looking at another version. A couple of questions, how is the unit secured onto the lens hood, so that there is no movement or risk of it falling off?
    3 layers, I presume you mean, 3 filters? Not sure how? Using the end of the lens hood as the datum/minimum distance for a filter from the element, and the 100mm filters, 2 rails is just about the maximum, and causes vignetting if rotated, so using 3 must make the issue worse. Slimmer rails may help, but the Lee rails seem to be the minimum required, so there is obviously a minimum height possible.

    Leave a comment:


  • Enzojz
    replied
    Re: How To Use Filters on 7-14!

    Hello there,

    A reply under my topic on dpreview leads me here.

    This is my 1st try, I modified the adapter that I made for ZD714, just add a soft layer inside the adapator:

    dpreview.com/forums/post/56013114

    Then my 2nd try, 3D printed prototype

    dpreview.com/forums/post/56062817

    I made some modification on the prototype, it's on the way being made!

    Yes, I confirme with some effort there will be no dark edge.

    I present you this, with this and some little modification effort, you can have 3 layers without dark edge

    3dpideas.es/shop/en/home/19-3dpslots.html

    Leave a comment:


  • Philn67
    replied
    Re: How To Use Filters on 7-14!

    It's performing very impressively indeed. You would expect it to be good but to me it's even better than I hoped. Contrast and colour is very good, sharpness is excellent even in the corners and the detail it resolves is incredible. There's next to no distortion and the FOV is great for using creatively. If you angle the lens down or up there will be vertical distortions obviously but LR does a very good job correcting it if you want to. All in all probably my favourite lens, but I like wide. And I can use filters just got a firecrest 16 and finally managed to get hold of a 10, hard to get!
    I refined the filter holder so I don't have to use the cloth hood. There is a small gap on the holder at the back where it goes over the lens so a black hair band sorts that. I got hold of some of the gasket material used on the rear of filters so I apploed it to the face of the Lee holder, now no problem even if I use a grad. Seems to be working quite well.

    Leave a comment:


  • Beagletorque
    replied
    Re: How To Use Filters on 7-14!

    Thanks. it reminded me of this http://www.3ders.org/articles/201411...ikon-lens.html maybe something similar for the 7-14?

    Leave a comment:


  • Philn67
    replied
    Re: How To Use Filters on 7-14!

    It's just superb! Been out a couple of times to push it and it's surprising how good it is. Lens flare is less of an issue than I though and even stopped down diffraction is less of a problem. A few shots at f22 were a little soft but the detail was all there and it sharpened up just fine without having to crucify soft tones and fine detail. It's the detail it resolves I love it's so impressive. To me anyway it seems better than the 12-40. When I first move d to oly 6 months ago I posted on here with concerns about fine detail (Same old same old from another full framer). Not any more.

    Leave a comment:


  • Beagletorque
    replied
    Re: How To Use Filters on 7-14!

    Great idea, thanks for sharing. How's the new lens performing?

    Leave a comment:


  • Philn67
    replied
    Re: How To Use Filters on 7-14!

    Originally posted by pdk42 View Post
    You obviously got there Phil, but separating Lee rings, gluing stuff together, chopping fixing pins, supergluing cup hooks and using old jerseys held on with elastic bands doesn't sit well with a lens costing £1000 or so!

    There is a nice solution from Fotodiox for the Panasonic 7-14, but it's very expensive (about £300 if you include the holder plus 10-stop ND) and it's not particularly portable either. I'm so amazed that anyone thinks designing a UWA lens without the ability to take filters is a sensible idea!
    True Paul but you don't have to cut bolts etc. just bond a ring onto the cokin ring and cut a sock up and you're good to go. It all looks neat and tidy too apart from the sock lol. Maybe there's a better way but it works. I saw the photodiox and it looks ok but it's the size for me, and cost of filters. 100mm cost enough as it is. And I'm not keen on removing a lens on a windy sandy beach just to put a filter holder on. Yep agreed who on earth thought a lens that will obviously appeal to landscapers more than anyone and often use filters, doesn't need a thread or a solution. Maybe Oly have something coming. If anyone produces a neat, easy to store holder that doesn't need filters over 100mm I'm there. My little cokin ring works a treat for now.

    Leave a comment:

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