I have no experience with the Bigma, but I think you loose some stops
with extension tubes.
For me, indeed the HD 55-300 PLM is most convenient for fast moving
insects. It has fairly fast focussing, is light weight and has a minimum
focus distance at 300 mm (450 eq.) of 95 cm. Therefore most of the
times I leave my Tamron 90/2.8 macro at home.
Here two shots (somewhat cropped) of bumblebees taken with the 55-300
PLM yesterday.
https://flic.kr/p/2r9AvQ2
https://flic.kr/p/2r9BtUV
Henk
Op 2025-06-09 om 06:43 schreef Alan Cole:
Henk Terhell uses his K70 & HD 55-300 PLM very successfully for insect
shots. The big advantake is that the photographer is distant from
easily disturbed subjects. A difficulty with a Bigma is that it is a
bit soft at 500mm. I have tried it with my screw-drive HD 55-300 & K5
but the focusing is rather slow by comparison.
Alan C
On 09/06/2025 00:03, Larry Colen wrote:
On another photo list, someone was asking about borrowing a macro
lens for a trip to Costa Rica, someone suggested putting extension
tubes on their telephoto. As usual my mind went to a silly, probably
impractical place.
What if I were to put extension tubes on my Sigma 50-500? Have any
of you tried doing something like this? Putting extension tubes on a
fairly long telephoto, to make a ridiculously long macro?
For them that like photos, on a related subject, here are 3 photos I
processed last night of a cropped fence lizard that I took with my
bigma a couple of weeks back:
https://www.flickr.com/photos/ellarsee/albums/72177720326695531
It's probably a blue belly, I didn't get close enough to check.
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