Search found 77 matches

by Rudi
Thu Jan 31, 2019 8:28 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: A tiny Viola flower - 100% crop added
Replies: 24
Views: 8453

I am not yet finished with this one.... I removed a few bits and pieces (well some petals actually..) to reveal a bit from the hidden parts.... 1: Canon 7DII_Lomo 3,7x/0,11 & SK_Makro-Symmar120/5,9 @3,7x 43 frames_40µm_Zerene Pm http://www.photomacrography.net/forum/userpix/4646_7DII_159866029_Viola...
by Rudi
Fri Jan 04, 2019 2:25 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: A tiny Viola flower - 100% crop added
Replies: 24
Views: 8453

It looks like you're right, Rudi - see picture 10B in this paper. (I haven't read it all, my eyes tend to glaze over.. :smt101 but the solitary bee pollination behaviour is descibed from just above the page number 635. ) http://hortsci.ashspublications.org/content/41/3/633.full.pdf which shows how ...
by Rudi
Wed Jan 02, 2019 2:17 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: A tiny Viola flower - 100% crop added
Replies: 24
Views: 8453

Nic and ChrisR, thanks for the comments/pointers... A bit late with my reply, well old to new things you know... When 'dissecting' the flower, I found out that it are indeed pollen, coming from hidden filamentless stamen..... Awaiting new flowers to come on this patch off violas for maybe a bit high...
by Rudi
Thu Dec 27, 2018 1:11 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: A tiny Viola flower - 100% crop added
Replies: 24
Views: 8453

After stacking the last viola's, I spotted some transparant girder like 'structures' on the flowers. My initial guess was that these are just broken off parts from the little 'spikes', but thats probably to easy an answer...., I have not yet taken any higher magnification shots, hence the 100% crop....
by Rudi
Fri Dec 21, 2018 2:50 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: A tiny Viola flower - 100% crop added
Replies: 24
Views: 8453

Awaiting some 'new arrivals' , I played a bit with this NOS..., with a little bonus this time. Maybe I should have gone wider, or closer, well next time... :lol: http://www.photomacrography.net/forum/userpix/4646_7DII_44638729_Viola__Bonus_1.jpg Canon 7DII Lomo 3,7x/0,11 & SK_Makro-Symmar120/5,9 @3,...
by Rudi
Fri Dec 21, 2018 2:28 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Pollen and anthers
Replies: 8
Views: 3154

The 'big chief' always watches me carefully when I am around 'new' arrivals, …. {-X Sounds like you have previous in this regard or why else would the 'posy police' be on your case? Guilty as charged, perhaps... :) Yep, I admit, guilty as charged... {-o<. But, to my defense, I occasionally buy some...
by Rudi
Thu Dec 20, 2018 12:48 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Pollen and anthers
Replies: 8
Views: 3154

Very nice indeed, love the details and the composition in 2 and 3.

Beatsy wrote:Funny how flower arrangements in this house always lose a flower head or two. Not my fault. They just kinda break off in my hand. Honest... :D....
The 'big chief' always watches me carefully when I am around 'new' arrivals, …. {-X
by Rudi
Sun Dec 16, 2018 9:13 am
Forum: Equipment Discussions
Topic: Lomo 3.7x Objective Extension vs Stacked Test Images
Replies: 18
Views: 7354

ChrisR wrote:It's just the marked aperture of the front lens x the magnification.
That Lomo we worked out recently is a f/3.6 (ish) lens.
So at say 4x, it's f/14.4
Thanks ChrisR, it sounds almost too easy to be true :D :D
by Rudi
Sun Dec 16, 2018 8:00 am
Forum: Equipment Discussions
Topic: Lomo 3.7x Objective Extension vs Stacked Test Images
Replies: 18
Views: 7354

As usual, interesting test Robert.

What formula is used to calculate the effective aperture off stacked combo's ?
by Rudi
Fri Dec 14, 2018 4:15 pm
Forum: Equipment Discussions
Topic: Lens Tests in Progress Coming Soon 2018
Replies: 25
Views: 6051

…..The Lomo results are actually what drove me to post this. I ran across the results on my hard drive and realized that not only had completely forgotten about the great results but that I never posted the findings! :shock: You actually did post some results see: http://www.photomacrography.net/fo...
by Rudi
Mon Dec 10, 2018 1:27 pm
Forum: Equipment Discussions
Topic: Schneider Componon 35mm F2.8 2.8/35 LINE SCAN LENS TEST
Replies: 9
Views: 2937

Thanks for the info Robert.
by Rudi
Mon Dec 10, 2018 12:14 pm
Forum: Equipment Discussions
Topic: Schneider Componon 35mm F2.8 2.8/35 LINE SCAN LENS TEST
Replies: 9
Views: 2937

Hi Robert,
interesting test again, thanks for posting.
I wonder iff you compared this combo with the Lomo 3,7x/0.11 on the Makro-Symmar ?
Kr, Rudi
by Rudi
Mon Dec 10, 2018 11:35 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: A tiny Viola flower - 100% crop added
Replies: 24
Views: 8453

I wonder what is the magnification? Edit: I see Robert got 3.7 x with the Lomo on this Makro-Symmar. I wonder if that was with the Makro-Symmar focussed at infinity or focused in such a way as to achieve 3.7x? I assume the latter. Maybe you did the same thing? Or maybe you used the Makro-Symmar foc...
by Rudi
Sun Dec 09, 2018 4:55 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: A tiny Viola flower - 100% crop added
Replies: 24
Views: 8453

Thanks for the comment ChrisR. That is really good at 100%. I'm excited to see how well this finite lens performs when stacked on the Makro-Symmar. As said before, I can not compare with other objectivs in this range, but I like it !! I am the limiting factor here, its all I can squeeze out right no...
by Rudi
Sun Dec 09, 2018 4:08 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: A tiny Viola flower - 100% crop added
Replies: 24
Views: 8453

Thanks all for the feedback and the nice comments, very much appreciated.

A 100% crop:

Image