Today I test the 3DPSlots with 3 guides shooting with a 6D and the Canon 16-35 f2.8 with any vignetting at 16mm f2.8, in the next photos you can compare the shoots.

There are only some brands like Lucroit and Fotodiox (WonderPana) that can achieve this results with expensive holders+adapters. The 3DPSlots are designed to work with the Lee holder (Serk, Thefilterdude) and allow you to use 3 filters without any vignetting using ultra-wide lenses, the perfect harmony between the Badpter and the 3DPSlots allow you to take photos easily and faster than other offers. 

The problem
I tried some technologies to design the 3DPSlots and as a result of this experience I know what technology is necessary to produce the 3DPSlots, I will explain why the slots has to be plastic injected:

• 3D Printing: I build the first slots units 3D Printed technology (of course) and the problem is the color and the price. The material necessary to print the slots has to be flexible and the only available color is white, the other problem is the price, 3D printing is still very expensive for medium/large series of pieces. 
  
• CNC Machinig: The material color necessary to build the slots is not available and the unit cost is so high. The actual working version that I'm using to take photos ;) is CNC machined.
  
• Plastic injection: The cost of the unit is very cheap and there are any problem about colors, textures, etc, but is necessary to build a metal mold that is veeeery expensive.

Well, my deal is to achieve a cheap retail price for this 3DPSlots, I think that 6€ will be a good price, now I need your ideas about how can the 3DPSlots arrive to the market, I think that Crowdfounding it not a good solutions to this project due to it is very specific and with an small market, what do you think?.

If anyone has an idea, please post it.

I create this table where you can found what screw length is necessary depending how many guides and what kind of guides (filter thickness) are you using in the Lee holder, also I put the screw designation to buy them in any hardware store for some cents ;)
For the people that are using the Lee compatible holder Serk I also put the reference in the bottom of the picture.

I will try to shot with the new slot design this weekend with a 5D and a 16-35mm to see how it works....
Intentaré tomar unas fotos con las nuevas guias este fin de semana con una 5D y un 16-35mm para comprobar que tal funcionan...

It's possible to shot in FF with an Ultra-Wide angle lens and a Lee holder without vignetting?, I will tell you the next week...
Es posible tomar fotos en FF con un ultra-angulat y el portafiltros Lee sin viñeteo?, la semana que viene os lo cuento...

First test of the aluminium "sample" adapter with a Lee compatible holder.

Today I visit one of the beautiful beaches near my town to take some photos with the compatible Lee adapter (C83L), I post the photos in the Lee adapter section to show how it works with three slots at 10mm in an APC-S camera.

I used the Lee Big Stopper filter to take a photo and it's very difficult not to have flares with the Lee holder, I think I should design a new aluminium holder... or maybe I have one designed...

To see the new photos visit the Lee adapter section.

If you have a Lee holder and you want to continue using your round filters, now you can.
I finished to test the C83L and works like a charm ;)

You can see how it works in the video.

The adapter it's available for the next lenses:

I finish the adapter design for the Tokina 11-16 lens and at this moment denatek is printing the adapter, I hope I will finish to do some test the next week. 

It will be available for the Lee and Cokin holder. 

Do you think is it interesting? , give a comment...

http://www.denatek.com/

It's now possible to buy the adapter for the next Canon lenses:

• EF 16-35 2.8L II USM
• EF 24-70mm f/2.8L II USM

I am very glad to announce this good news.

One of the most professional and good standing photography shop in Barcelona will support me in this project.
Soon could be possible to buy 3DPideas products in this shop and also play with them in theirs photographic workshops.

In this shop you will find all the hi-tech photographic technology that you can imagine (the Leica section is incredible), if anyone are visiting Barcelona I recommend you to visit this shop.

Lee have his own Ultra Wide adapters to use with ultra angular lenses that allow you take photos without any vignetting, but is it possible to improve this adapters?, are you using the Lee holder and want to use screwed filters?.

At this moment I'm testing the adapter C83L (that has been designed to work with the Lee holder) with a Lee compatible plastic holder.

The advantages of using this adapters in my opinion are:

• Quickly mounting/dismounting.
• Allow you screw filters like a ND64 if you want not to spend your money in a Big Stopper.
  
• Allow you mount the Lee holder with your UV round filter screwed.
  
• Allow you put the lens cap to protect your lens.
• The filter installed in the first place of the holder stay nearest to the lens that using the UW Lee screwed adapter.