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Re: [OM] Kenko Fish-Eye Adapter

Subject: Re: [OM] Kenko Fish-Eye Adapter
From: "Daniel Sepke" <fred42@xxxxxxxxx>
Date: Sun, 26 Oct 2003 06:59:03 -0500
Hi there Wayne,

Thanks for the info on your experience.

I got my one with the 52mm adapter, based on a little googling I have
figured out that they came with 52 and 58 most commonly but a 49 is out
there. Until I turn up a 49mm one  I have done similar to you and popped a
49-52 set ring on. The extra metal doesn't seem to affect the focus between
the two units, so filters might be an option. If I am interpreting the scale
correctly and I use a 35mm I should be able to get f4 with the fisheye,
which would help with handheld.Your pictures looked fun! I am hoping to try
the little beastie out this weekend in St Louis.

The tip on the aperture setting for the main lens was very helpful, I could
have been getting a very small circle otherwise... :)

As you noted it does do full frame when coupled to a 100mm as the main lens?
I figured it out by just holding the lens up to a 135 and having a eureka
moment. It slows the lens speeds down but looks workable with patience.

All I can say is not bad for $21 of OMoney (ish ;)

Catch Y'all later.

Dan S

> I picked up one of these recently in unused condition, but it arrived
minus
> the adapter on the back that allows you to screw it on to the lens.
Anyways,
> the seller was good about it and gave me a partial refund that made the
> price of it into almost a gift. I removed the glass from a 49mm Osawa
filter
> I had, and with a little grinding that removed the forward threads of the
> filter ring, it just fit snugly onto the back perimeter of the body of the
> Kenko adapter lens. I epoxied it in place, so have a pretty cheap lens
> adapter. It now screws directly onto any of my 49mm lenses. I think the
> original was supposed to be a 52mm. I can add another filter to the back
> that works as a lens cap (or other modifying filter) to protect the back
> element, but didn't have any in place for these tests. I don't think the
> spacing matters much, as you can add filter ring adapters to them for use
> with different sizes. But I may try spacing mine a bit further from the
> front element to see if that helps.
>
> From the first tests, I wouldn't want to have a lot of money tied up in
it.
> I was only shooting handheld,  with it mounted on a 50/1.8 on the OM10,
and
> it produced some fun images, but quite soft. Here are a few scans.
> http://www.photo.net/photodb/folder.tcl?folder_id=346810
> Keep in mind I lose some image quality with my scanner, so the originals
are
> better, but still are nothing to write home about in quality.
> For exposure, I just took a reading before putting on the adapter, and
made
> no compensation. I used the OM10 in manual mode. Basically it was just
> following the sunny day rule. I included the sun in one pic just to see
what
> flare it would produce. On the one with yellow flowers, I held the lens
just
> a few inches from the closest flowers. I think you can use one about as
well
> without bothering to look through the viewfinder. That way you can keep
your
> feet out of the image a bit easier.
> I have no instuctions with mine, but quickly figured out that you just use
> your primary lens wide open, set at infinity, and set the aperture
manually
> on the adapter. You just have a few basic f/stop settings on the adapter.
> The other ring setting just tells you the relative f/stops you get with
the
> other focal length lenses, it does not actually change the iris opening.
But
> of course this gives you the info you need when using the different length
> lenses in order to set the proper f/stop.
> I haven't tried it yet with other length lenses, but just looking through
it
> with my Z.100/2.8, it looks to give the full rectangular image.
> Wayne
>
>
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