Chuck, Piers,
Thank you for your comments.
Actually I didn't have the ND4X on it, and the last problem was shooting the
moon while it was still daylight and it was cool, not really cold, but the
lens and I may have a different idea of cold.
Moose said that the glass was part of the equation, so I put it in today,
though it was warm enough I only had a light long sleeve shirt on (pulling
Oaks from between blood thirsty roses and hidden blackberries).
Today the focus was just fine, even with the 2 X Vivitar Tele/macro.
http://www.flickr.com/photos/55838750@N00/
soon I will be able to get a full moon at night, to compare to the Seimar
500 I was using.
I looked on Ebay and didn't see and Sigma 22.5 filters. They come in a
clear?
Or what is the best suggestion for shooting the moon and shooting hawks and
other birds?
Scott
----- Original Message -----
From: "Chuck Norcutt" <chucknorcutt@xxxxxxxxxxxxxxxx>
To: <olympus@xxxxxxxxxx>
Sent: Wednesday, March 28, 2007 1:29 PM
Subject: [OM] Re: focusing question
> Yes, follow Piers' advice immediately. With the ND4 you're losing two
> stops (1/4 of the light) from f/8 so it's as though you're trying to
> focus at f/16. It's amazing that you can see anything.
>
> Chuck Norcutt
>
> Piers Hemy wrote:
>> If I understood you correctly, Scott, you have a ND4 filter permanently
>> on
>> your 600/8 lens. That being the case it isn't surprising that you are
>> having difficulty focusing, especially on the half-size E-500 screen. I
>> don't think I would be able to focus that on an OM screen - in fact, I
>> think
>> I might nit be able to frame the subject, let alone focus.
>>
>> Suggestion #1 - take off the ND filter. Don't worry that you don't have
>> a
>> plain glass to replace it, because I reckon the degradation that might
>> result will be much preferable to the out of focus results you are
>> presently
>> "enjoying".
>>
>> Suggestion #2 - if the above doesn't suit, or doesn't get the results
>> needed, get hold of a large searchlight as a focusing aid ;-)
>
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