Subal 105mm VR Flat Port with Woody's Diopter

Hello all,

I need find a good working solution for use the Woody's Diopter NCL-110 with the Subal 105mm VR Flat Port.

The problem:

Diopter with 110mm outside diameter and the Subal 105mm VR port with 122mm outside diameter.

The solution:

I wait for your help for this, regarding your experience in the same situation.

Best regards,

Tigershark

I have not seen one myself, but can you get a buddy with a lathe to machine up an adaptor in say delrin? - don't think vignetting would be an issue but you may need to confirm before going too far.

Should be a straightforward machine job.

Paul C

Add picture of the diopter and way to use them in a flat port for super macro:

http://www.usanexus.com/diopter.html

Best regards,

Tigershark

Tiger,

You may want to look at this idea for using a close-up lens from Inon.

http://inonamerica.com/products.php?produc...=3&subcat=1

Phil Rudin

I am assuming here that you can't get one of these things for your new port? for $55 - do it!

If you cannot then both of the above options will 'go' - but there is a third - if it were mine I would strip the lens out of its current floppy plastic casing and make a new one for it to fit the new port. Having said that I do have a machine shop!

Paul C

For Sea & Sea users and the standard port, what we do is to buy a soft plastic port cover, pop out the Woody's lens from its black plastic cap, trace out the size of the diopter (just the lens) and cut out a hole to fit in the port cover...pop in the woody's lens and use.....

There are threads on this in these forums.... I am doing this myself..

I use the 110 sized Diopter on my Subal. The soft rubber is stretchy enough to fit onto a Subal flat port. No extra costs needed.

The Woody's diopter is the best and cheapest accessory you can add to improve your Macro Photography.

Been using one since 2002.

s.

I use the 110 sized Diopter on my Subal. The soft rubber is stretchy enough to fit onto a Subal flat port. No extra costs needed.

 

The Woody's diopter is the best and cheapest accessory you can add to improve your Macro Photography.

 

Been using one since 2002.

 

s.

Hi scubastu,

I hope you are right.

Please, can you confirm your Subal port are the 105mm VR flat port - (Subal FP-FC105VR)?

If yes, I don't need be worried.

Best regards,

Tigershark

I just adapted one to my Olympus flat port which has a diameter of 145mm. The solution for larger flat ports is to use your current port cover instead of the rubber moulding that comes with it. If your port cover is rubber and roughly the same width, you can cut it to fit the Woody. I know this isn't ideal but it does work.

For Sea & Sea users and the standard port, what we do is to buy a soft plastic port cover, pop out the Woody's lens from its black plastic cap, trace out the size of the diopter (just the lens) and cut out a hole to fit in the port cover...pop in the woody's lens and use.....

If you Google rubber caps, you'll find a number of suppliers. Many will send out a free sample, as companies need to check the size will fit. I had to try several sizes to get one to fit my Aquatica port, so order several sizes. The actual diameter one proved too big. I found the one that was lightly smaller worked, as the Aquatica port narrows in steps towards the housing. Also remember to punch a few holes for water to get in; you just copy the size and position from the Woody's.

Cheers,

Marli

Hi scubastu,

 

I hope you are right.

Please, can you confirm your Subal port are the 105mm VR flat port - (Subal FP-FC105VR)?

If yes, I don't need be worried.

Best regards,

Tigershark

It looks like the VR version has is larger than the other standard Subal ports, if that's the case then your best bet is to order an extra flat port cover, use the floppy plastic as a template and cut a hole in the port cover, secure with silicone and you're done.

s.

In fact, it's possible put the diopter with 110mm in the new Subal 105VR port with 122mm.

Very tight fit, no problem in land and without gloves but for underwater use is a little difficult.

The best way for this work well without extra cost is remove the lens, find a tube or a pot with 120mm diameter, place the rubber in the tube or pot and insert in very hot water for a pair of minutes.

Remove from the hot water, pass in cold water and leave that for some hours.

Replace the lens.

After this job will work great.

Best regards,

Tigershark

Hi,

I had exactly the same problem in my previous housing. I made a 5mm neoprene skirt to substitute with the original black rubber. It was great. BTW make the hole for the lens smaller than the original. Neoprene is flexible and you can stretch it around the lens. You want to have something that holds the lens securely and at the same time not too tight that you need 2 hands underwater to place it on the macroport.

Another solution: keep the original rubber skirt and cut a V shape chunk off it. Don't cut the whole thickness of the skirt, in other words don't reach the lens with the tip of the V. Cut a small hole, 1cm from each free margins of the skirt and join them with a bungee. You have at this point an adjustable gap in the skirt. I didn't try this, I saw it from someone else. I guess it is good if you don't have more that 2-3 cm to catch up.

I think the neoprene solution works better.

alex

So does this thing work kind of like a magnifying glass in front of the lens or what? Can anyone provide a link to an explanation?

So does this thing work kind of like a magnifying glass in front of the lens or what? Can anyone provide a link to an explanation?

Basically... A better analogy would be a set of reading glasses. The diopter allows the lens to focus closer that it would be able to otherwise. Because you can focus closer, the image becomes magnified, but you lose the ability to focus on distant objects when it's in place.