Hi,
No, this is not buyer's remorse at all, and certainly not even a few,
or a few hundred, specks
of dust, this is a strange deposit inside the lens. In anyway, I am
still thrilled, it just seems as if it something
which should (and could) be cleaned...
Of course dirt in the lens can cause flare / halation / contrast loss!
- I can clearly see the flare
rings reflect off the junk in the lens when I point into the sun.
However, a bit of dust won't do this, this
is much worse.
Anyway, it still appears to be a great lens, and I will definitely
"shoot and be happy" :-)
thanks for the interest, and regards,
Dawid
On 29 Sep 2008, at 3:57 PM, <chucknorcutt@xxxxxxxxxxxxxxxx>
<chucknorcutt@xxxxxxxxxxxxxxxx
> wrote:
> I may be wrong but I find it difficult to believe that any amount of
> dust or paint flecks that a lens may accumulate internally can have
> any visible effect at all on an actual photograph. I don't see how
> they can cause "flare" in any way and the total surface area of the
> "dust" relative to the total surface area of the glass has to be
> minuscule. It would be interesting to perform a test of a common
> target between two identical lenses... on with "dust" and the other
> supposedly clean.
>
> Chuck Norcutt
>
>
>> -------Original Message-------
>> From: Sue Pearce <bs.pearce@xxxxxxx>
>> Subject: [OM] Re: OM-1 Viewfinder
>> Sent: Sep 29 '08 13:28
>>
>>
>> Regarding the specks in the 90mm Macro, I am going to
>> take a photo and post a link to it here sometime to
>> get this list's opinion. I agree, I am going to complain to the
>> seller, he mentioned a 'few specks of dust' which is, of course, of
>> no concern (I am not one of those people who worry about dust in a
>> lens), but this is really rather a *lot* of worryingly uniform
>> (in terms of coverage across the lens element) specks, visible
>> only in sharp, direct sun, which appears to make
>> the lens rather flare-prone (looking through the finder,
>> anyway, have not looked at film results yet) , because sunlight
>> shining into the lens is obviously seriously reflecting off
>> of them."
>>
>> Not tojump on you, Dawid, but this is a problem to me. I think this
>> is the
>> unfortunate offspring of ebay, as I don't remember specks of dust
>> to be a
>> problem years ago. I had a 35-70 purchased on ebay and returned
>> because when
>> the buyer shined a Tensor lamp into the front, he could see a
>> single small
>> speck. Since there was no speck visible under any other way, I
>> think it must
>> have been a reflection of something. I ferunded his money, and days
>> later he
>> announced on this list that he just purchased a complete E1 outfit.
>> I think
>> it may have been a speck of buyer's remorse.
>>
>> Specks of stuff, especially black paint, have been a reality in new
>> lenses
>> for decades, and we formerly were accepting of them. Not now.
>>
>> Don't worry, shoot and be happy.
>>
>> Bill Pearce
>>
>>
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