Join for FREE
It only takes a minute!
Discover the ZEISS Digital Nature Hub

Welcome to BirdForum.
BirdForum is the net's largest birding community, dedicated to wild birds and birding, and is absolutely FREE! You are most welcome to register for an account, which allows you to take part in lively discussions in the forum, post your pictures in the gallery and more.

Showing results 1 to 25 of 582
Search took 0.03 seconds.
Search: Posts Made By: tjsimonsen
Forum: Sigma & Other Third Party Lenses Saturday 14th March 2015, 06:21
Replies: 569
Views: 223,889
Posted By tjsimonsen
It does look quite impressive! And in general the...

It does look quite impressive! And in general the background looks pretty good too, although the witch-hazel shoot does show the lens' limitations in that respect. It's not in anyway worse than my...
Forum: Butterflies and Moths ID Wednesday 11th March 2015, 11:52
Replies: 5
Views: 661
Posted By tjsimonsen
I'm pretty sure #3 is a Terinos, and it looks...

I'm pretty sure #3 is a Terinos, and it looks mostly like Terinos clarissa.

Thomas
Forum: Sigma & Other Third Party Lenses Tuesday 30th December 2014, 13:57
Replies: 867
Views: 235,936
Posted By tjsimonsen
Well Said! Thomas

Well Said!

Thomas
Forum: Canon Friday 26th December 2014, 16:03
Replies: 90
Views: 23,922
Posted By tjsimonsen
FF review on Photozone:...

FF review on Photozone: http://www.photozone.de/canon_eos_ff/896-canon100400f4556is2
Looks pretty good, I must say.

Thomas
Forum: Sigma & Other Third Party Lenses Sunday 21st December 2014, 20:05
Replies: 867
Views: 235,936
Posted By tjsimonsen
Well, yes. But we can tell our flycatchers apart...

Well, yes. But we can tell our flycatchers apart B (:

Thomas
Forum: Canon Tuesday 18th November 2014, 08:02
Replies: 90
Views: 23,922
Posted By tjsimonsen
Mostly with a 350D. The exception being Oz where...

Mostly with a 350D. The exception being Oz where I used a 40D. So generally, no automatic sensor cleaning.

Thomas
Forum: Canon Sunday 16th November 2014, 13:59
Replies: 90
Views: 23,922
Posted By tjsimonsen
Agree 100% - and it may well be that some people...

Agree 100% - and it may well be that some people tend to pump the push-pull zomm unnecessarily more than they would twist a traditional zoom and thereby shift more air and consequently suck in more...
Forum: Canon Sunday 16th November 2014, 13:52
Replies: 90
Views: 23,922
Posted By tjsimonsen
Well, I have used mine in SE Alberta, Utah,...

Well, I have used mine in SE Alberta, Utah, Nevada, Arizona, South Africa and Australia without any excessive dust problems, certainly nothing that has any effect on the IQ. And these places are...
Forum: Butterflies and Moths ID Saturday 8th November 2014, 10:33
Replies: 2
Views: 717
Posted By tjsimonsen
Given the red bands on the abdomen, I'd say...

Given the red bands on the abdomen, I'd say Zygaena sarpedon.

Thomas
Forum: Butterflies and Moths ID Saturday 8th November 2014, 10:24
Replies: 2
Views: 624
Posted By tjsimonsen
I am leaning towards a very faded Attacus...

I am leaning towards a very faded Attacus atlas.

Thomas
Forum: Sigma & Other Third Party Lenses Tuesday 30th September 2014, 07:46
Replies: 1,450
Views: 438,585
Posted By tjsimonsen
Bloody flames, yes. What I particularly like is...

Bloody flames, yes. What I particularly like is that the Oxpecker shot shows that even with f13 the background is more than decent for a zoom.

Thomas
Forum: Sigma & Other Third Party Lenses Saturday 27th September 2014, 06:50
Replies: 1,450
Views: 438,585
Posted By tjsimonsen
Image stabilisation has an effect on the...

Image stabilisation has an effect on the photographer as well: when the image appears to be stable in the view finder, you are more likely to hold the camere still; whereas you are more likely to...
Forum: Macro Photography Sunday 21st September 2014, 19:07
Replies: 8
Views: 6,456
Posted By tjsimonsen
I agree with much of what you say, but not with...

I agree with much of what you say, but not with respect to a lens hood being necessary, or even useful, on a Canon lens - it gets in the way of the (often necessary) flash.

Thomas
Forum: Butterflies and Moths ID Saturday 16th August 2014, 19:44
Replies: 7
Views: 635
Posted By tjsimonsen
Can't think of an European species that looks...

Can't think of an European species that looks like this. I still think it is an introduced H. fundata.

Thomas
Forum: Butterflies and Moths ID Saturday 9th August 2014, 14:56
Replies: 7
Views: 635
Posted By tjsimonsen
I think it is more than bizarre. It looks like a...

I think it is more than bizarre. It looks like a perfect match for Heoclisis fundata - an Australian endemic!

Thomas
Forum: Canon Friday 1st August 2014, 19:02
Replies: 90
Views: 23,922
Posted By tjsimonsen
Not necessarily. Canon could just discontinue it...

Not necessarily. Canon could just discontinue it and introduce a 150-500/4.5-5.6. Not that I say that is what will happen - only that it could B (:

Thomas
Forum: Butterflies and Moths ID Wednesday 30th July 2014, 11:51
Replies: 9
Views: 561
Posted By tjsimonsen
Can't help with the big ones, but #2 is Oncocera...

Can't help with the big ones, but #2 is Oncocera semirubella.

Thomas
Forum: Butterflies and Moths ID Friday 4th July 2014, 07:14
Replies: 6
Views: 364
Posted By tjsimonsen
1+2 is a caddish fly. Thomas

1+2 is a caddish fly.

Thomas
Forum: Butterflies and Moths ID Wednesday 28th May 2014, 07:37
Replies: 3
Views: 336
Posted By tjsimonsen
I definitely agree it's a choreutid, but doesn't...

I definitely agree it's a choreutid, but doesn't it fit an equally worn Choreutis pariana better?

Thomas
Forum: Butterflies and Moths ID Sunday 18th May 2014, 06:53
Replies: 1
Views: 408
Posted By tjsimonsen
Tricky from that view, but it looks like a female...

Tricky from that view, but it looks like a female Adela reaumurella.

Thomas
Forum: Butterflies and Moths ID Thursday 10th April 2014, 19:51
Replies: 5
Views: 671
Posted By tjsimonsen
Hi, Martin is right it is a Hepialidae, and...

Hi,

Martin is right it is a Hepialidae, and almost spot on with Abantiades. I am almost sure it is a female Trictena atripalpis, a genus very close to Abantiades.

Thomas
Forum: Sigma & Other Third Party Lenses Sunday 9th March 2014, 21:49
Replies: 1,450
Views: 438,585
Posted By tjsimonsen
Spotted Towhee. That's a very good pic - if it's...

Spotted Towhee.
That's a very good pic - if it's @600mm I'll even say great :t:

Thomas
Forum: Insects, Dragonflies, Arachnids, Beetles & More Friday 27th December 2013, 21:08
Replies: 29
Views: 4,253
Posted By tjsimonsen
Short answer to the last question: No. Longer...

Short answer to the last question: No.

Longer answer: in my experience as a professional entomologist who came to that profession through years of being an 'amateur insect killer' (I colelcted and...
Forum: Butterflies and Moths ID Friday 27th December 2013, 20:20
Replies: 4
Views: 917
Posted By tjsimonsen
The first one is the common lime swallowtail,...

The first one is the common lime swallowtail, Papilio demoleus. The second is probably the great mormon swallowtail, Papilio memnon.

The last one gave me a bit of trouble, but I think it's the...
Forum: Butterflies and Moths ID Wednesday 18th December 2013, 10:40
Replies: 2
Views: 575
Posted By tjsimonsen
Pipewine Swallowtail, Battus philenor. Thomas

Pipewine Swallowtail, Battus philenor.

Thomas
Showing results 1 to 25 of 582
 


Fatbirder's Top 1000 Birding Websites

Help support BirdForum

Page generated in 0.10953903 seconds with 10 queries
All times are GMT. The time now is 23:26.