Search found 65 matches
- Fri Apr 01, 2011 7:21 am
- Forum: General
- Topic: Streetlighting and Species Decline
- Replies: 7
- Views: 569
Streetlighting and Species Decline
Some councils seem to be switching over to super-bright, white, LED streetlights. This would seem to pose a threat to many moths which will be attracted to them and either end up in a pile underneath, or get picked off by bats (the low-pressure sodium lamps currently in use in many areas are barely ...
- Mon Jan 31, 2011 9:34 am
- Forum: Photography
- Topic: butterfly spooked by autofocus motor
- Replies: 5
- Views: 534
Re: butterfly spooked by autofocus motor
Common experience! I've had it particularly with woodland butterflies like Speckled Woods with my Nikon D300, never with blues or whites. I've also noticed it with some other insects on occasions - for thius reason I generally switch to manual focus closer than 1:4.
Chris
Chris
- Tue Jul 13, 2010 12:13 pm
- Forum: General
- Topic: Deaths' Head Hawk moth
- Replies: 11
- Views: 830
Re: Deaths' Head Hawk moth
Another foodplant is said to be buddhleia (if that's how you spell it!). A colleague of mine has bread them a couple of times recently, and brought the larvae and adult moths in for me to photograph. Impressive!!
Chris
Chris
- Thu Jul 01, 2010 1:16 pm
- Forum: Photography
- Topic: Tamron 90mm with 1.4X converter.
- Replies: 8
- Views: 551
Re: Tamron 90mm with 1.4X converter.
I think the issue with the apparent aperture not indicating a full stop light loss may be a consequence of the fact that the apparent aperture of the lens changes as you focus (fact of life with macro lenses usually). In other words, at infinity focus, the aperture will indicate f2.8, but as you foc...
- Wed Jun 16, 2010 10:18 am
- Forum: Sightings
- Topic: June 2010 Sightings
- Replies: 182
- Views: 9336
Re: June 2010 Sightings
I spotted 4 or 5 Small Blues this weekend on a patch of kidney vetch a mile or so from my house (S. Oxon). All were rather worn females busy egg laying.
Not an enormous number, but more than I've seen there for a year or two.
Chris
Not an enormous number, but more than I've seen there for a year or two.
Chris
- Thu May 06, 2010 11:03 am
- Forum: Photography
- Topic: M42 thread macro lenses
- Replies: 3
- Views: 318
Re: M42 thread macro lenses
I have an old Tamron SP90 Adaptall manual macro lens that I bought (for Pentax bayonet) but I have used it with an M42 adapter as well onm an M42 body. It is an excellent macro lens, prized by many (see last week's Amateur Photographer for example, which rates it highly as a second hand lens). It is...
- Wed Apr 21, 2010 1:36 pm
- Forum: General
- Topic: Finding green hairstreaks
- Replies: 23
- Views: 1642
Re: Finding green hairstreaks
They are fairly common most years around here (S.Oxon, Chalk Downland) in one or two specific spots. The best way I've found to see them is to go to prominent hawthorn bushes or small trees in sunny positions and wait. Groups of 3-4 GHs seem to move around over quite a large area, but will come back...
- Thu Apr 01, 2010 2:08 pm
- Forum: General
- Topic: Ancient Egyptians and butterflies
- Replies: 16
- Views: 571
Re: Ancient Egyptians and butterflies
I believe that many cultures also associate butterflies with the spirits of the dead - same word in some languages. Greek mythology as well, I believe.
Chris
Chris
- Tue Mar 23, 2010 12:20 pm
- Forum: General
- Topic: Painted Ladies
- Replies: 2
- Views: 244
Re: Painted Ladies
The first butterflies I saw this year (Feb, S. Oxon) were fast moving vanessids that looked very much like extremely worn Painted Ladies. They were flying "purposefully" very much like the waves of PLs that passed over last year. Bearing in mind the extremely cold winter, and the general b...
- Thu Feb 25, 2010 12:53 pm
- Forum: Sightings
- Topic: First sign of Spring??
- Replies: 1
- Views: 250
First sign of Spring??
After all this white stuff, it was refreshing last night to open the door to let the cat out and have a moth fly in! Nothing very exciting (appeared to be a November Moth, obviously elderly and confused) but at least it was a lep!
Chris
Chris
Re: Raptor
Many thanks for the opinions, which I agree with. The colleague who saw the bird (and another local wildlife-er who came forward independently having seen it a couple of miles away an hour later) both thought it was a scruffy osprey (I didn't use the word, because I didn't want to lead anyone down t...
Re: Raptor
The girl who saw it is married to a very keen birder and goes regularly on birding holidays eg to Scandinavia. She is also a very experienced scientist and very accurate in her observations. She dismissed my suggestion of a hen harrier (but I did see two here on Saturday) when I saw the pic; I also ...
Raptor
A bit off-topic this, but I know there are some butterfly-loving twitchers out there..... See this morning by a colleague on her way to work (near Wantage, S. Oxon) and photographed with a phone. She got a good look close up for several minutes, as it sat in a hedge. Is this what I think it is?? mys...
- Wed Dec 02, 2009 1:31 pm
- Forum: Photography
- Topic: Ring Flash
- Replies: 4
- Views: 495
Re: Ring Flash
I don't know if anyone is interested but there are several "ring lights" on sale now which work quite well with a DSLR. One sold by Hama (via Amazon/Germany) has a ring of ultrabright LEDs on a flexible arm. This can be positioned in front of the lens like a normal ringflash or angled down...
- Thu Nov 05, 2009 12:33 pm
- Forum: Photography
- Topic: Ring Flash
- Replies: 4
- Views: 495
Re: Ring Flash
In general terms, a ringflash is very useful for certain things, but will inevitably offend the purist who wants a natural-looking pic of a butterfly. I use them on occasion at work for technical subjects, but the problem with a butterfly is that you get the "miner's headlamp" effect, with...
- Wed Oct 07, 2009 11:06 am
- Forum: Overseas
- Topic: Tippling butterflies
- Replies: 10
- Views: 512
Re: Tippling butterflies
Talking of graylings, one for the experts........ Seen flying round a wood at very high speed (July) in the Besancon area. After 10 mins or so of flying display, it flew at a tree stump at high speed and then disappeared, but was in fact disguised against the wood bark. Is it a Woodland Grayling, or...
- Thu Sep 17, 2009 12:09 pm
- Forum: Sightings
- Topic: semi ichnusoides
- Replies: 2
- Views: 248
semi ichnusoides
I had a nice pic of a Small Tort aber. semi ichnusoides sent to me by an old friend who lives in S. Oxfordshire - has anyone else seen these around? As Small Torts eggs and pupae are available from suppliers for schools, I did wonder where these were captive bred on a hot window ledge in a school so...
- Tue Sep 15, 2009 11:59 am
- Forum: Photography
- Topic: Shooting hawk moths, any advice?
- Replies: 13
- Views: 941
Re: Shooting hawk moths, any advice?
I've had the most luck wrt hawkmoths (HBH or BH) using manual focus and finding a sprig of eg lavender where they return, time and time again. eg:- Having said that, I have had more than 30 hawk moths in my trap this year, and they are a lot easier to photograph when they are placidly sitting on a l...
- Tue Sep 15, 2009 8:22 am
- Forum: Photography
- Topic: Photoshopping Advice Please
- Replies: 11
- Views: 963
Re: Photoshopping Advice Please
Thanks for the advice, which has been most useful. I forgot to say originally that the files are all RAW, that I shoot in full sun/overcast, (but preferred conditions are hazy sun to reduce shadows) or flash - the ginger problem appears under all conditions. Oddly, if I use a colour digital test cha...
- Thu Sep 10, 2009 12:12 pm
- Forum: Photography
- Topic: Photoshopping Advice Please
- Replies: 11
- Views: 963
Photoshopping Advice Please
With certain orange-brown species, I have some difficulty with getting a reasonably realistic colour reproduction whatever I do In Photoshop (Elements 5). A good example is a Comma, which always looks too ginger 'ish, or Small Copper where for example several I saw this lunchtime, despite being quit...