Jump to content

Alan7140

Contributor
  • Content Count

    10,485
  • Joined

  • Last visited

  • Days Won

    359
  • Country

    Australia

Alan7140 last won the day on 10 September

Alan7140 had the most liked content!

Community Reputation

3,756 of my posts have been liked

About Alan7140

  • Rank
    Grandmaster Member
  • Birthday 07/01/1953

Profile Information

  • Real Name
    Alan Lesheim
  • Gender
    Male
  • Location
    Tasmania, Australia
  • Photographic Interests
    Photography, Guitar
  • Edit my pics?
    Ask Me
  • Fav. Camera
    Pentacon Six
  • Fav. Lens
    4/50
  • Fav. Editor
    Rodinal, with some elbow grease ;)

Recent Profile Visitors

3,476 profile views
  1. I should still have a Nikon-Fuji adapter kicking around here, Chris. If I find it I'll let you know. It'll never get used here again as I have no F-mount lenses left, so if it turns up I can send it to you and you can gt that Tamron back into service (that Tamron Macro has an excellent reputation, by the way). I'll PM you for postal address details if I find it.
  2. They have incredibly good, almost 360º eyesight, and also have a camouflage-like ability to change their colour to more closely mimic the vegetation they are in. The optic receptors (small black dot in each eye) travel around behind their array of fixed micro-lenses, firmly set on you when photographing them, indicating an awareness that you are something other than vegetation or prey and therefore a possible threat. When looking directly at you they definitely have 3-D vision. I've long been fascinated by them, from their swaying, back & forth gait to mimic vegetation in a breeze, to the lightning-fast attack-and-grab of their prey once in reach of those powerful, toothed, scissor-like front limbs. Here's one I photographed in a dried-out bush with it's colour having changed to reflect that, and its 'eyes' fastened firmly on me:
  3. You can also get a Nikon F - Fuji XF adapter for the Tamron lens. They are cheap enough and readily available, only downside is that you'll have to stop the lens down manually when using it. I used the excellent 105/2.8 (with PN 1:1 extender) & 200/4 AI-s Micro-Nikkor lenses for a couple of years in this way with my Fuji cameras.
  4. Nicely done, and yes, it is a Mantis...
  5. 2020....And how things change... Re-reading my article brought back memories of how the magnificent tonal gradation and resolution of the Sigma DP series cameras with their Foveon sensors was a revelation compared to previous results of converting cameras with Bayer sensors to B&W of the typical 12-24 MP resolution at the time. I was convinced that this was my way into a future of using B&W as my main form of expression in photography, but never foresaw what Sigma themselves had in mind for the future. I had assumed that a proper interchangeable-lens mirrorless system camera system would follow with a more developed Foveon sensor of higher resolution or larger physical size (or both). I never foresaw that Sigma would in fact back-pedal with the following sd Quattro sensor to the degree they did. Apparently the volume of data transfer required, along with accompanying battery drain and heat build-up were beyond their ability to control, so what is effectively a hybrid sensor resulted, still with the Foveon three layer sensel layout, but with the two lower layers responsible for capturing the green and red colour components of the spectrum had sensels four times the size of the upper-most layer which remained responsible for the blue and overall luminance information, which in turn meant that interpolation (as in Bayer sensors) reared its ugly head again. I bought an sd Quattro H camera with the intent of using it with vintage lenses as it is easily adaptable to M42 lenses with a simple adapter ring, but the hoped for continuation of the revelations that the DP Foveon cameras had brought to digital B&W reproduction failed to materialise. So.... as can be seen from my later posts, I have now both retired from a working life in photography (which means I have more time on my hands) and returned to using film cameras of various ages, centred around a comprehensive Pentacon Six outfit along with both Olympus OM-1 and Minolta SRT-101 outfits to cover 35mm and 120 formats, and late 19th and early 20th Century field and studio cameras for large formats. I am still using the sd Quattro-H as the intermediate step in digitising the resulting negatives for inkjet prints, but eventually I'll probably be printing larger prints the old way again since my Epson 7800 expired after 12 years of hard use and I couldn't justify a new A1 printer without a commercial workload to make it viable, so I bought an A2 Epson P-800 printer which effectively confines me to a print size of 16.5" on the short dimension, and which is plenty for almost any print needs I can foresee with me now having re-entered "hobby photographer" status after 48 years of being fully involved at a professional level. So, yes, this is a retraction of my final conclusion of the initial article's conclusions, and my darkroom is now actively humming away with the smell of stop bath and fixer permeating the air once more.
  6. Alan7140

    Memories

    The house we all drew in preschool/kindergarten. I revisited the old shepherd's hut in the hills behind my place yesterday and took this photo with my Sigma sd-QH without it's easily removable IR-cut filter and a HiTech 85 (Wratten 87 equivalent) 780nm IR filter in a Cokin holder taped to the front of a 1984 MIR-20 3,5/20 lens attached to the camera via an M-42-SA mount adapter (the lens has no filter thread).
  7. Alan7140

    Finally....

    Hugh, with the current situation in NZ hopefully being localised and of short duration, I reckon both you and I here in Tasmania are in some of the safest places on Earth at the moment. I am anxious for all the friends I left behind in Victoria over a quarter of a century ago, though, the mess there still seems rather out of control at present. As each re-emergence happens I can't help but think that, vaccine or effective treatment aside, this could run for many more months, if not years, before "normal" returns (in whatever form that might take).
  8. Alan7140

    Finally....

    Hugh, the Coolscan will kill you with boredom - fastest thing on the planet it isn't. Copy stand, an A4 LED panel (and a neg holder from an enlarger to keep any unmounted slides flat) and you'll zip through them. For higher definition fill the frame with the short dimension and move the neg holder between exposures for three generously overlapped images (left, middle, right, manual focus, manual exposure & colour balance keeping things the same) that even the most basic stitcher will assemble them easily. Keep things straight by using the black edge of the slide frame with regard to the edge of the viewfinder frame edge as reference. With a 24 MP sensor you'll end up with around 45-48 MP files if you fill the frame, which will be more than adequate.
  9. Alan7140

    Finally....

    Unsurprisingly it's the B&W one for me. Maybe an edit with a less grainy result might be worth a shot.
  10. The studio I first worked at in the 1970's had the Cambo predecessor of today's studio stands - and this sort of thing really is the only way to fly in a studio. Tripods are a PITA once you've used one of these. I still have an enduring image of my boss standing with one foot on the pedestal, left arm draped over one extension arm with camera on the other operated with his right hand, scooting the thing around the studio floor getting the best angles on the models he''d be shooting. Here's what that '70's version we used looked like - it stood about 7' tall so we had to use a step ladder when the head was higher up on the stand for high-angle shots that no studio tripod would have a hope of achieving so high or sturdily (the thing was as solid as the Rock of Gibraltar):
  11. I love your on-going shots of this bobcat family.
  12. Alan7140

    Light Trails

    Were you using a stabilised lens? That might account for the wavy lines, although it wouldn't take much camera vibration to produce that, either.
  13. Alan7140

    Dawn at Joshua Tree

    Hand-held GPS units like the Garmin 60-series are for more than just finding your way in untracked wilderness - put your bag down, immediately hit the "mark" button and even if you wander a mile from where your bag is, you'll be able to walk straight back to it. Works the same for parked cars. My Garmin 62s is getting on for 10 years old and is still going strong, acting as a nice security blanket for my ageing memory functions.
  14. https://www.bbc.com/news/technology-53165293?fbclid=IwAR2tEyS4fJ_0dU1woj8gl9OBz5ydMSYJ-Etl3puv5JwZ7sWqr8fuWsfjGjE
  15. Alan7140

    Docklands Evening

    Melbourne is further south than even Capetown, -38° vs -34° (down here near Hobart we're -42°). Durban at -30° is closer to Brisbane at latitude -27.5° (all roughly rounded out), Sydney is about level with Cape Town.
×
×
  • Create New...

Important Information

By visiting this website you are agreeing to our Terms of Use, Privacy Policy & Guidelines.