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ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

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  1. wilfredsdad

    Siskin?? Steart Point, Bristol Channel, UK

    Could anyone take a stab at i.d'ing this guy - I'm thinking a Siskin but not at all sure. Managed only to get this one shot then he/she was gone. About the size of a House Sparrow. Steart Point by the Bristol Channel, UK on mon 28th March.
  2. wilfredsdad

    Paint Shop Pro 2019

    I thought I would post a brief comment regarding Paint Shop Pro 2019 as there does not seem to be much mention of it on Bird Forum. I have been using the program now for about six months for all my photo processing and I am very pleased with it. I upgraded to it after using Adobe PhotoShop...
  3. wilfredsdad

    Kenko 1.4x and Canon 400mm f5.6

    Attached are some pics taken with my eos760d + Canon 400mm f5.6 + Kenko CA-F 1.4X Teleplus MC4 DGX. I have found autofocus to be fast and 90% reliable using one of the non-cross type focus points to the side of the centre focus point. I get no auto focus using the centre spot or the cross-type...
  4. wilfredsdad

    Image stabilisation - actually relevant to bird photography?

    I have had a few thoughts about image stabilisation, I would be pleased to hear any comments on the following rational: When trying to photograph birds we have two problems:- 1. Camera shake - the near impossibility of holding the camera and telephoto lens absolutely still when the shutter is...
  5. wilfredsdad

    Prime focus - why the need for an extension tube?

    Hello, I am just setting up to try prime focus digiscoping (Acuter 20-60x80 scope, Canon eos760D). I intend to use a 2x (possibly 3x) Barlow. Whilst looking at the equipment used for some of the prime focused, digiscoped pics shown in various user galleries here I see that most have included an...
  6. wilfredsdad

    Live view - surprisingly useful

    I have always tended to regard 'live view' as a bit of a marketing gimmick and I couldn't really see what value it might have in bird photography - particularly in view of the slow autofocus. However, I recently acquired an old Teleplus 2x converter (cheap on eBay). I did not expect to get...
  7. wilfredsdad

    'Cross type focusing point' - make much difference to focusing accuracy?

    Hello - wonder if some people might be able to give me some info on 'Cross type focusing points'. My EOS 500D has a 'f5.6 cross type focusing point at the centre' - does that imply that this focusing point only works as a cross type when my lens is at f5.6 (I use the Canon 400mm f5.6L)? What...
  8. wilfredsdad

    16 bit colour - does it really make a big difference?

    Hello - it says in the specs for my Canon 500D that the raw image type is "14-bit Canon Original". Am I correct in assuming the obvious that this is a half-way-house between full 16-bit colour and the 8-bit colour that the jpegs are saved in? I alway shoot and process in raw and save my...
  9. wilfredsdad

    Photoshop 7 won't open my Canon raw files

    Hello - wonder if anyone might possibly be able to help me with a bit of nitty gritty technical stuff. My Photoshop Elements 7 won't open my EOS 500D raw files. The files have a .CR2 extension (is that the current Canon raw file format?) but when I try to open them in Elements 7 I get a message...
  10. wilfredsdad

    Probably the dumbest question of the year

    Hello - I suspect this is probably the dumbest question of the the year - but, here goes: do I understand correctly that the real value of a 'fast' lens is that - in a given set of conditions a 'fast' lens will enable the use of a shorter exposure for a given f stop (or conversly - a higher f...
  11. wilfredsdad

    Use of portable screens and hides

    Hello. I have been struggling with bird photograhy for a little while now and I am still a little disappointed by my very high failure rate. I have good kit - a Canon EOS 500D and the Canon EF 400mm f5.6L - and I have seen many good pics in BirdForum galleries taken with that lens and similar...
  12. wilfredsdad

    Tamron 70-300 any good?

    Hi - has anyone had experience with the Tamron 70-300mm telephoto/macro? It's a bit less expensive than the Sigma and much less expensive than the Canon. I'm sure the Canon is the best, but any info regarding the Tamron would be appreciated. Regards, Pete
  13. wilfredsdad

    500D + EF400 f5.6 + Kenko AF 1.5x Teleplus DG - first results K

    500D + EF400 f5.6 + Kenko AF 1.5x Teleplus DG - first results OK As there seems to have been lots of discussion about what converters work with what lenses and cameras I thought I would just put up front my preliminary experiences with my new Kenko 1.5x Teleplus DG with my new EOS 500 and EF...
  14. wilfredsdad

    First pics with my new 500D & EF 400 5.6

    Hello - first a repeat thank you to all who helped with advice and info regarding the EF 400 and other Canon matters. Went for a 500D in the end. Have had the camera for a couple of days and just picked up a 2nd hand EF 400 today (Saturday). Tried it in my back garden; to say I'm pleased would...
  15. wilfredsdad

    Workflow in PS and when to resize?

    Hello - could anyone advise at what stage in the development process in Photoshop is it best to resize. My way of working (with jpegs from the camera) is:- 1.Download from the camera and store on hard disc 2.Crop as required - usually the crop leaves me with an image of ~2000pixels 3.Enhance to...
  16. wilfredsdad

    Canon EF 400 mm f/5.6L USM lens - a couple of questions

    Hello you Canon folks I am thinking of deserting the Olympus camp and coming over to join you (looking at either a 450d or maybe a 500d). One of the principal attractions being the sensible range of fixed focal length telephoto lenses which seem to be available for Canon (none such available...
  17. wilfredsdad

    EOS 450D - Auto Focus "Cross Type at F2.8 at center" er ... me no understandee

    EOS 450D - Auto Focus "Cross Type at F2.8 at center" er ... me no understandee Hello Could somebody clarify this for me: looking at the spec of the EOS450D (which I am considering buying) it states that the auto focus system has 9 points and has a "cross type at F2.8 at centre"; the spec for...
  18. wilfredsdad

    Depth of field and aperture priority

    Hello - maybe somebody could clear this up for me: I have noticed in most discussions about camera settings for digiscoping that aperture priority is recommended. I am assuming that this is because it allows one to set the highest f stop for the conditions in order to try and maximize depth of...
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