Search found 172 matches

by dbur
Sat Jun 26, 2010 8:59 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: my first test with a telecentric lens - daisies
Replies: 19
Views: 8800

Good points.

I haven't done much more than you see here yet.
by dbur
Sat Jun 26, 2010 5:06 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: my first test with a telecentric lens - daisies
Replies: 19
Views: 8800

I have a few extension sections that go between the lenses. I tried some but it seems the best is with no extensions using my micro nikkor 55mm base lens. I do get a full image on the 1.6 crop factor lens in my Canon 50D. How close to telecentric over than span it is probably needs more testing. Her...
by dbur
Fri Jun 25, 2010 10:02 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: my first test with a telecentric lens - daisies
Replies: 19
Views: 8800

Well I did all that but each time I looked at the upload gallery my old uploads were there but not the new one, even though it did seem to respond as if the upload was successful. Maybe my isp just sucks too bad. Note that though the upload window completed with 'done' status, it did not open up a p...
by dbur
Thu Jun 24, 2010 11:21 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: my first test with a telecentric lens - daisies
Replies: 19
Views: 8800

The results look promising. Can you post more details about the telecentric lens and how the lens combination is assembled? See the previous post for a link to the only data I have on the lens. Here is a photo of it attached to the base lens. Well dang the picture is not there after I upload it. Tr...
by dbur
Thu Jun 24, 2010 10:28 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: my first test with a telecentric lens - daisies
Replies: 19
Views: 8800

Dbur, I have an Invaritar P/N 59 LGA 499 telecentric lens made by Melles Griot (I picked it up for $5 a local camera swap meet, a while back---neither the vendor or I knew what it was!). Is this similar to your model? Bob Mine is a 59 LGH 416. These go for $685 new so you got an awesome deal, thoug...
by dbur
Thu Jun 24, 2010 1:45 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: my first test with a telecentric lens - daisies
Replies: 19
Views: 8800

my first test with a telecentric lens - daisies

My first test with a telecentric lens. This uses a micro nikkor 55mm base lens on a Canon mount (50D) and Melles Griot telecentric lens. Four frames portrait with horizontal panning on a focus rail. Preprocessed with PhotoAcute and stitched with Hugin. Shot at about f18 with a hand held flash covere...
by dbur
Tue Apr 27, 2010 9:15 pm
Forum: Nature Photography -- Macro and Close-up
Topic: Focus Stacking Primer
Replies: 6
Views: 1310

Very nice tutorials. I also like the other ebooks you've put together on that site. Thanks.

Another focus stacking application I have been using is PhotoAcute. It also does true resolution enhancement, moving object removal and a few other things.

David B