Panasonic 7-14, my 3D printed adapter for square filters

Discussion in 'Native Lenses' started by mauro, Dec 2, 2015.

  1. mauro

    mauro Mu-43 Regular

    163
    Jun 26, 2012
    near Venice, Italy
    I'm a happy owner of the Panasonic 7-14 f4 and I frequently shot long exposures and landscapes so I need to use ND and GND filters.

    I have used a DIY adapter until now but I have decided to design a 3D printed adapter and finally I get it!

    Here are some pictures, this is specific for haida holder but I'm working also on the Lee version.

    TS560x560?url=https%3A%2F%2Fc1.staticflickr.com%2F1%2F674%2F22775410944_9bcc45c016_c.


    TS560x560?url=https%3A%2F%2Fc1.staticflickr.com%2F1%2F647%2F23321222011_287dd88093_c.

    I don't think I will sell it officially because I consider it as a home made product but if you want a copy we can talk about it.
     
    • Like Like x 1
  2. ijm5012

    ijm5012 Mu-43 Legend

    Oct 2, 2013
    Pittsburgh, PA
    Ian
    What size Haida ring do you use, 82mm?
     
  3. mauro

    mauro Mu-43 Regular

    163
    Jun 26, 2012
    near Venice, Italy
    The ring is included in the adapter! It's a single 3D print. No ring is needed.
     
  4. Hypilein

    Hypilein Mu-43 All-Pro

    Mar 18, 2015
    I was thinking of getting something 3d printed myself, although I would want to go for 95 or 105mm circular filters. How did you achieve a snug fit (not falling of the lens) and would you generally be willing to provide a bit of data? What software did you use to create this?
     
  5. mauro

    mauro Mu-43 Regular

    163
    Jun 26, 2012
    near Venice, Italy
    The adapater is very tight to the lens hood and it also has a 1mm foam gasket.
    You have to use a little force to insert it and it doesn't fall out, also because the 7-14 hood is a little conical.

    I don't know how you can use 95 or 105mm round filters because I don't think it's possible to print the thread with a 3d printer.

    I simply used Autocad for the drawing.
     
  6. Hypilein

    Hypilein Mu-43 All-Pro

    Mar 18, 2015
    I was going to create an indent for a thread and take a 95mm UV filter and remove the glass. I would then just glue it into the gap.
     
  7. mauro

    mauro Mu-43 Regular

    163
    Jun 26, 2012
    near Venice, Italy
    I finally received the latest version of adapter for lee 100mm system. The good news is that I haven`t found any vignette even at 7mm.
    The picture below was taken at 7mm and the focus was onthe monument. It`s a jpg from my em1.

    6gx2ETH.
     
    Last edited: Jan 7, 2016
    • Like Like x 3
  8. Nathanael

    Nathanael Mu-43 Veteran

    462
    Oct 12, 2015
    Nice little project. That photo shows quite a bit of vignette, is that just the natural lens vignette?
     
    • Like Like x 1
  9. Tom_Chan

    Tom_Chan Mu-43 Regular Subscribing Member

    80
    Aug 19, 2013
    Palo Alto, CA
    It's a combination of both. There's ~1.1 stops vignetting without the filter according to Panasonic Lumix G 7-14mm f/4 ASPH - Review / Test Report - Analysis, plus further vignetting introduced by the filter where the level of vignetting added depends on the strength of the ND being used.
     
    • Like Like x 2
  10. mcasan

    mcasan Mu-43 All-Pro

    Feb 26, 2014
    Atlanta
  11. Nathanael

    Nathanael Mu-43 Veteran

    462
    Oct 12, 2015
    Ahh I never use ND filters so I hadn't thought of that aspect, a flat ND filter with a wide angle lens would naturally create some vignette as the light travels at increasingly obtuse angles to the filter itself. Or am I misunderstanding the effect?
     
    • Agree Agree x 1
  12. mcasan

    mcasan Mu-43 All-Pro

    Feb 26, 2014
    Atlanta
    And going through a CPL with a wide lens you can get the dreaded blue halo in the sky if you are not careful.
     
  13. Tom_Chan

    Tom_Chan Mu-43 Regular Subscribing Member

    80
    Aug 19, 2013
    Palo Alto, CA
    No you are absolutely correct. :)

    Sent from my Nexus 5 using Tapatalk
     
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