Inon wide Angle Lens - Type 1 and Type 2

[Gilligan]

Just thought I would post this tidbit of information if you are thinking of getting an Inon UWL-100 Wide Angle Lens for the Olympus PT-010 housing.

The Type 2 lens mounts directly to the housing w/o an adapter. HOWEVER, this lens is not suitable for all the different model Olympus cameras that fit in the PT-010 due to excessive vignetting.

Those models are the C3000Z, C3030Z, C4000Z and C4100Z. These models require the Type 1 lens and the adaptor for mounting.

I discovered this by looking over the PDF chart on Yuzo's website.

 

[Dee]

The M67 adapter mentioned...is that the one needed to use S&S MMII boyonet lenses? We've had several folks askiong about them lately.

 

[Gilligan]

I'm not sure Dee. I am not familiar with the S&S lens. I stumbled upon this Type 1 - Type 2 thing while looking over the Inon wide angle on Yuzo's website. Since I have the C4000Z I would have to get a Type 1 lens + adaptor even though the Type 2 threads onto my PT-010.
I'm not camera educated enough to know why there is vingetting on certain C series Oly cameras using the Type 2 lens.

 

[Dee]

I'm not savvy enough either! I have a hard enough time remembering stuff pertaining to my own stuff!!!

 

[Gilligan]

Me too.

 

[TedJ]

Ok, here goes a few definitions. Maybe we can learn something here as I just got the INON WAL.

http://www.vanwalree.com/optics/vignetting.html

This one is rather technical

http://www.archiphoto.com/personal pages/Vignetting.html

One dealing with panorama and digital cameras

http://www.fsoft.it/Imaging/Vignetting.htm

Here's one from amazon.com's pros

http://www.amazon.com/exec/obidos/tg/feature/-/96011/102-9169553-6331302

Here's a good one relating lens hoods to WALs.

http://www.cs.mtu.edu/~shene/DigiCam/User-Guide/lens/995-lens-hoods.html

This should be enough toget us started.
TEdJ

 

[marpacifica]

I sure wish I had this information when I ordered from Yuzo last summer. I'm pretty sure he didn't have the .pdf comparison chart back then so I got the Type 2. The site back then said order Type 1 if you had one of the smaller sized housings, so I ordered Type 2. Now I know why I have so much vignetting. If I zoom in to get rid of it, I still get corners that are out of focus. Live and learn on internet sales! Anyone wanna buy a Type 2 lens???????

 

[Gilligan]

Ted:
Many thanks for all the info. It certainly helps with this vignetting issue.
marpacifica:
Sorry you got the wrong lens and I would have likely done that also as I have a C4000Z. I was just doing some snooping around at prices and saw that chart. I couldn't figure out why some of the C series Oly's had an "X" for the Type 2 lens when they all are in the same housing. Yuzo's lens page is confusing as it shows the housings for the Type 2 lens and camera models listed but did not list the 4000. That's what got me curious. It also talks about other Oly housings that require an adaptor. I then saw the link to the chart. I think that page should just send everyone to the chart and not list the other info as it is misleading. Perhaps you can e mail him about it as you have one of his lenses.
There must be a different zoom factor with the 4000 versus the 4040.
I'm sure you will be able to sell your Type 2 with all the 5050's out there.

 

[Dee]

Mar.....I just noticed your signature. I love it!

 

[Dee]

Ted, in that second link about the panoramas....Have you tried the program the guy wrote to correct it? He only mentions having to have Virtual Basic on your computer to run it.