By itself the 180/2.8 goes down to 2 meters and 0.11 mag. With all 3 OM
tubes (46mm) you get down to 0.92 meters and 0.36 mag.
Chuck Norcutt
On 3/18/2013 7:20 PM, DZDub wrote:
> On Mon, Mar 18, 2013 at 2:23 AM, C.H.Ling <ch_photo@xxxxxxxxxxxxx> wrote:
>
>> Joel, the shots are very nice dispite of the poor lighting condition, I
>> like
>> the B/W orchid.
>>
>> OM180/2.8 has very long close focus distance, I use a 43mm extension tube
>> (a
>> Sigma 2x with lens element removed) for closeup and tripod is required with
>> this combination.
>
>
> Thanks, Ling. The 180 is very heavy compared to "digital" lenses, isn't
> it. I realize I will need to get back into practice using it. I was
> judging the amount of extension I might need from the distances I often
> have to work with. I guess it is quite hard to compare a fixed telephoto
> to a zoom lens in this regard. If I try it, I will just make sure I have
> all of my tubes with me!
>
> I suppose I should take a monopod too. I would probably be asked to leave
> if I set up a tripod!
>
> Joel W.
>
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