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jordi

Member Since 09 Aug 2004
Offline Last Active Feb 11 2014 05:31 AM
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Posts I've Made

In Topic: New SEACAM website

18 January 2010 - 08:03 AM

Hi Stephen,

thanks for the info.
One more question: the Canon 1DMkIV will have a completely new housing or it will be the same than MkIII but with access to Video control made easy.

best

In Topic: INON UFL-MR130 EFS60 Underwater Micro Semi-Fisheye Relay Lens in Action!

14 January 2010 - 03:39 AM

Hi Drew,

Sorry for the delay answering you.
The lens is sharpest at very close distances (1-3 cm). And that's more evident with Nikon. The background is completely out of focus with the Nikon. I have done pictures at f/25 with both systems at the same distances (Canon+60mm EF-S and Nikon+60mm AF), and the background is more out of focus with the Nikon combo.

I attach some crops of one of the images (the focus is on the fish mouth):

(To Eric: I was really shock when I saw my name on the front page this morning!! :) )

lower left corner
Attached File  crop_2.jpg   53.27KB   137 downloads

In Topic: INON UFL-MR130 EFS60 Underwater Micro Semi-Fisheye Relay Lens in Action!

13 January 2010 - 05:08 AM

Hi all,

After doing many tests I've got the solution of using the inon Lens with a Nikon camera. The solution was easier that I though but sometimes we use to start looking for in the most difficult side instead of try the easy way.

The Inon lens works awfully with Nikon 60 mm AFS, or 105mm VR but to my surprise it works pretty well with the old 60 mm AF macro. There's some corner softness but it is very sharp in the center.
Thanks to Jose Sanchez (www.sagadive.com) I have adapated the lens to a D300 housing. The port needs to be very well machined to align both lenses and avoid vignetting.

I attach a couple of samples that I took last week:

In Topic: INON UFL-MR130 EFS60 Underwater Micro Semi-Fisheye Relay Lens in Action!

22 December 2009 - 01:24 AM

Those are really awesome. Obviously it is a special effect lens - not to be over used, but great when it comes together. The depth of field is impressive too.

Thanks for posting, Jordi.

Alex



You are right Alex!! In my opinion, the lens is a special effect lens for special applications.

For example the depth of field is not as big as it seems. I'll try to post some crops. Focusing is quite critical!

Sharpness is not as good as a fisheye lens for example. The final image is softer than any normal lens. I've shot at 200 iso in shallow water (without any noise) and when you crop any detail to 100%, it is obvious that is not sharp enough, but anyway the lens is worthy for special applications. From my short experience the focus is better in the center than in the corners.
I've used a Canon 50D and I tried it with an hugyfot housing and S&S housing with special SAGA port.
I've tried to use it with the 105Vr+ d300 and the focusing is more critical because of the smaller depth of field. I am not sure if 100mm or 105 mm will have some vignetting in full frame cameras.

I've tried with the Nikon 60 mm AF-S and there was a lot of vignetting.

I attach one of the sharpest images that I've got with some crops.

In Topic: INON UFL-MR130 EFS60 Underwater Micro Semi-Fisheye Relay Lens in Action!

20 December 2009 - 02:38 AM

A couple of weeks ago I got one of those lenses (Inon UFL-MR130) and thanks to an adaptor port made by Jose Sanchez (www.sagadive.com) I was able to use it with my Hugyfot housing.

I summarize certain operational aspects of this lens:

- It is designed to be used with Canon APS-C and 60 mm Canon EF-S. With SAGA we have tried to use it with Nikon cameras and multiple lenses without satisfactory results, but we are still trying.
- This is not a wet-lens, so it is not possible to remove it underwater. It is also necessary to use a specific port that aligns it with the 60 mm lens.
- Need to focus manually.
- Contrary to what might seem the focus is very critical.
- For maximum quality and depth of field you have to shoot between f/22 and f/32.
- We need to get too close to photograph the subject: between 1 and 4 cm (approx)

The best: it takes a lot of fun and let you shoot in previously unthinkable way .
I have done a couple of dives with it. I've posted a small gallery on my website that I will update as I'll take more pictures.
www.uwaterphoto.com/galeria.php?op=8

I attach some samples