Perhaps just ordinary refraction through the water drops. However, some
appear to have central bands running through them of a different color.
I've no idea why.
Chuck Norcutt
Warren Kato wrote:
> Looks like specular highlights. A very high intensity small spot that
> is creating some aberrations, perhaps in the lens coating, that was
> not designed for because the lens engineers didn't design for such an
> unusual situation. I've gotten something similar when shooting sand
> in the bright sun. A very bring spot of sun will bloom out and make
> these little discs of light, although not colored as in this example.
>
> Here's an example that might be related; don't know for sure.
>
> http://www.120scan.us/i/W2034914b.jpg
>
> This is dew on a spider web.
>
> Warren
>
> On Mon, Sep 1, 2008 at 3:40 AM, Chuck Norcutt
> <chucknorcutt@xxxxxxxxxxxxxxxx> wrote:
>> Ooops. I forgot to comment on the wierd out of focus highlights. I
>> haven't a clue.
>>
>> Chuck Norcutt
>>
>> Peter Klein wrote:
>>> Today I experimented with an old 135/3.5 Olympus OM tele on the
>>> E-510. It's like using a 270mm lens on a 35mm camera. Manual focus, manual
>>> stop-down, aperture priority metering, and in-body image stabilization. I
>>> focused wide open, then counted clicks down f/8 to shoot.
>>>
>>> This is the best shot from today, a natural abstract with a crow and some
>>> electrical wires:
>>> <http://gallery.leica-users.org/v/pklein/album170/P8312368CrowWires-w.jpg.html>
>>>
>>> Now, check this out:
>>> <http://gallery.leica-users.org/v/pklein/album170/P8312345GirlSlide-w.jpg.html>
>>> Behind this typical childhood scene is a weird optical effect. Out of focus
>>> highlight disks are greenish donuts surrounding a reddish core. Here's a
>>> 1:1 crop showing the effect more clearly. See the highlights on the
>>> woman's glasses, bolts and washers on the bench, and cris-crosses on the
>>> fence behind.
>>> <http://gallery.leica-users.org/v/pklein/album170/P8312345CrazyChroma.jpg.html>
>>>
>>> A couple more scenes from the park with the 135:
>>> <http://gallery.leica-users.org/v/pklein/album170/P8312358SGalBleachers-w.jpg.html>
>>> <http://gallery.leica-users.org/v/pklein/album170/P8312354ShihTzu-w.jpg.html>
>>>
>>> Focusing is difficult. If I keep using this lens, or my 100/2.8, I'm going
>>> to want a focus confirmation chip on the lens adapter, and/or a Katz Eye
>>> screen. Anyone with experience with either of these--how well do they work?
>>>
>>> --Peter
>>>
>>>
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