After so much delays in the production, transport, customs, etc, the compatible Lee/Serk slots are now here. With a cheap price and a fantastic design quality the slots can be built in the shop, are you going to miss it?

Después de demasiados retrasos en la producción, transporte, aduana, etc, las guías compatibles con el portafiltros Lee/Serk ya están aquí. Con un precio ajustado y una calidad en el diseño fantástica ya pueden ser compradas en la tienda, te lo vas a perder?.

Yesterday I tested the new NiSi 32000, it filter give you 15 stops for your long exposures, yes, 15 Stops...

I used to take this capture the Badpter and the new 3DPSlots.

I'm very happy confirming that checking the color cast in CameraRaw this filter is awesome, in the next captures you will see a comparative of two shots, one without the filter and the other with the NiSi32000 filter. 
The captures are directly the RAW's they don't have any parameter changed in CameraRaw as you can see in the photos.

If anyone are interested to check what I'm seeing I attached the RAW's
Photo1
Photo2

We are working hard to finish our Lee's compatible slots, at this moment we are testing different materials and the process is so long. we hope that in some weeks the slots will be ready to test in photographic conditions. 
With this project we discovered the problem to work with 3D printed pieces due to the facility to forget the plastic injection basic rules, because of that we had a lot of problems to achieve an injectable mold.

What are the benefits of the 3DPSlots:

• The possibility to take photos in Full Frame at 16mm f/2.8 without vignetting. At this moment this is only possible using an expensive holder with a super-expensive and huge 120mm CPL.
  
• In conjunction with the Badpter you could still using your CPL screwed in your lens and with the new design of the 3DPSlots now is easiest to rotate the CPL.
  
• You can use different thickness filters without any problems, normally the filters are 2mm thick but there are some brands like Cokin that make filters a bit thinner and this is a problem if you have a Lee holder.
• Thanks to the pressure fixations in the extreme of the slots, the fixation is safer and softer than other holders, moreover the filter enter grooves are wider allowing a softly filter entrance.

 
Estamos trabajando duro para finalizar las guías compatibles con el porta Lee, en estos momentos estamos probando diferentes materiales y el proceso es largo, esperamos que en unas semanas estén listas para probarlas en condiciones reales y por fotógrafos.
Con este proyecto hemos descubierto los problemas de trabajar con impresiones 3D debido a la facilidad de olvidar las reglas básicas de la inyección de plástico, esto nos ha dado muchos problemas para poder realizar un molde inyectable.

Cuales son los beneficios de los 3DPSlots:

• La posibilidad de sacar fotos con una Full Frame a 16mm f/2.8 sin ningún viñeteo. En esto momentos esto solo es posible usando un portafiltros caro y un Polarizador Circular de 120mm aún más caro.
• En conjunto con el Badpter podrás seguir usando tu Polarizador Circular roscado en tu lente y con el nuevo diseño de las 3DPSlots ahora será mucho mas fácil girarlo.
• Se podrán usar diferentes anchuras de filtro sin problemas, normalmente los filtros son de 2mm de ancho pero hay marcas como Cokin que hace los filtros mas delgados y esto es un problemas con el portafilttros Lee.
• Gracias al diseño de las fijaciones en los extremos de las guías, la fijación de los filtros es mas segura y suave, además el canal de entrada es mas holgado y esto hace que los filtros entren de una manera mas suave.

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.