Search results

  1. Petrochemist

    Nature Show 'Insect'

    Dragonfly resting 1 by Mike Kanssen, on Flickr 590nm+ infra red
  2. Petrochemist

    Share Trains - Depots - Trestles - Stations

    Yaxham signal box IR by Mike Kanssen, on Flickr Yaxham signal box in IR (590nm+)
  3. Petrochemist

    "Aviation Photo Thread" (Planes, Helos, Balloons, etc)...

    Wingwalker by Mike Kanssen, on Flickr
  4. Petrochemist

    Pentax Lovin my Pentax Q and adapted Canon Cine lenses...

    I don't think my d-mount lenses are as sharp & contrasty as your Canons but I still love having the option for a long telephoto (270mm equivalent) that fits in the palm of your hand:
  5. Petrochemist

    SHOW Paths, Tracks and Roads

    BTCC in IR by Mike Kanssen, on Flickr
  6. Petrochemist

    Textures, lines and angles

    sml P1300444 by Mike Kanssen, on Flickr
  7. Petrochemist

    Show ships - vessels - boats - yachts - submarines - whatever ...

    sea worker at sea by Mike Kanssen, on Flickr
  8. Petrochemist

    Challenge! Post an image of yours related to the one above it!

    Brightlingsea at dusk by Mike Kanssen, on Flickr
  9. Petrochemist

    bubbles and such.....

    You have to be in manual, and it depends on the flash. One of my older studio flashes only has 2 power settings, while hot shoe flashes are less powerful so their fractional power may become near useless. I don't think any of my hotshoe flashes could keep up. I'm generally not a fan of shooting...
  10. Petrochemist

    bubbles and such.....

    Sounds like excellent progress! It depends on your flash, one of my studio flashes set to 1/128th power, might keep up with 10 fps or so. But generally flash & continuous mode don't make good partners :)
  11. Petrochemist

    Pentax Adapting lenses on a Pentax DSLRs

    I was referring to both, and it seemed to me your reply cover both as well :) You're images do show that they are good, but I always find it hard to judge when someone else is using kit, some photographers can make top quality kit look awful & others can get great images from junk. Value for...
  12. Petrochemist

    Minimalism and abstract

    Blue moon by Mike Kanssen, on Flickr
  13. Petrochemist

    Challenge! Post an image of yours related to the one above it!

    demon monkey IMGP1306 by Mike Kanssen, on Flickr
  14. Petrochemist

    Nature Show "Flowers"

    Backlit orchid by Mike Kanssen, on Flickr
  15. Petrochemist

    bubbles and such.....

    I wouldn't worry about the posted expiry date. I've got bottles at work that will be stable for millions of years that show expiry dates a few years in the future. Once opened contamination may be an issue, but whats the date got to do with that? Oxidation & UV might degrade your glycerin in...
  16. Petrochemist

    Pentax Adapting lenses on a Pentax DSLRs

    I was debating whether to include M42, I started using M42 lenses on PK bodies back in the 1980's, so they feel fairly native to me, but they do still count. I've added a lot more M42 lenses since then, a few of the very good. I've not had the chance to play with R mount, and have never gone the...
  17. Petrochemist

    Pentax Adapting lenses on a Pentax DSLRs

    Despite the good results & prices of Pentax lenses, I've become a big fan of adapting lenses as well. Most of the time this is on one of my mirrorless cameras (Pentax Q, Panasonic MFT & Sony) but there are times when my SLRs work well too :) Here's one of my earliest adapted lenses, used on the...
  18. Petrochemist

    bubbles and such.....

    I don't know Clipper oil, but I suspect it will be OK as will lighter fluid (probably less flammable than gasoline). lighter fluid is more volatile than ideal IMO.
  19. Petrochemist

    bubbles and such.....

    I doubt the grade of engine oil matters, a few drops of oil wiped from an engine dipstick would probably be enough. There are multiple grades of kerosine/kerosene (both spellings are equally acceptable) In the UK we have odourless kerosine, C1/Premium kerosine & C2/regular kerosine all are oils...
  20. Petrochemist

    bubbles and such.....

    Hi Lucien If your thinking of the thin film oil on water rainbow like effect, then diesel, kerosine or perhaps engine oil would be better than gasoline. Gasoline evaporates fairly quickly & would produce dangerous fumes.... You'll want a very small amount of the oil, putting some on a piece of...
  21. Petrochemist

    Infrared Gear Nikon D70 and Other cameras: infrared random pictures

    Just to show another option here's one from a Sigma SD14 with the dust filter removed & a green filter added, where due to the Foveon sensor IR shows in the red channel but the remaining colours are more or less as normal. (The dust filter is also the hot mirror & is user removable in about 5...
  22. Petrochemist

    Infrared Gear Nikon D70 and Other cameras: infrared random pictures

    I've got a handful of wide angle converters the Olympus 0.8x one is quite reasonable, but none of the others are a patch on a wide angle lens. They may prove useful with something like the lensbaby, (or of course a fixed lens camera) where the available lenses are restricted. Teleconverters &...
  23. Petrochemist

    Infrared Gear Nikon D70 and Other cameras: infrared random pictures

    They were my Dad & my Daughter, back in 2010. It may have proved the theory but it's certainly not a great shot. Here's a later one with the same camera using Panoramic stitching (Microsoft ICE, combining 5 handheld shots) instead of the fisheye adapter a much better approach (and helped by...
  24. Petrochemist

    Infrared Gear Nikon D70 and Other cameras: infrared random pictures

    Perhaps I'll add one of my early IR shots from an unmodified K100d (and the only one I have to hand that's not desaturated.) It's NOT in any way impressive but was only a test shot to see if stacking a fisheye adapter onto the outside of the IR filter could be made to work. Fish-eye IR by Mike...
  25. Petrochemist

    Astrophotography

    No (unless you're seeing something I've missed) It was fairly transitory, just a shooting star. I've never managed to make out andromeda. My brothers place would be an excellent spot to try - I'll have to remember when Covid finally allows me to go off & visit him again (it's 9+ hours drive once...
  26. Petrochemist

    Infrared Gear Nikon D70 and Other cameras: infrared random pictures

    That last one almost has the feel of a 590 shot, far more colour than I'd have expected for a 720nm
  27. Petrochemist

    Infrared Gear Nikon D70 and Other cameras: infrared random pictures

    A lovely selection Lucien. I think the ones which have an overall red cast may have been improved with a better white balance. Colouring is usually fairly subtle with a 720nm filter but your definitely finding some variations. I have heard that the white balance control often doesn't go far...
  28. Petrochemist

    Astrophotography

    Shot at my brothers place where light pollution is considerable reduced (with the camera just resting on a garden table) shooting star + lightning by Mike Kanssen, on Flickr
  29. Petrochemist

    Photo of a photographer taking a photo

    Mind the cliff! by Mike Kanssen, on Flickr
  30. Petrochemist

    Show ships - vessels - boats - yachts - submarines - whatever ...

    CK21 'Maria' by Mike Kanssen, on Flickr
  31. Petrochemist

    Challenge! Show 'Stress'

    Good point, well presented... Now done :)
  32. Petrochemist

    Challenge! Show 'Stress'

    How about sharing your interpretations on the title Stress? It seems to me that a very wide range of subjects could be chosen, some portraits could be perfect, yet the shot below also fits :) stressed stencil by Mike Kanssen, on Flickr What can you come up with? (The challenges section seems...
  33. Petrochemist

    Share Trains - Depots - Trestles - Stations

    An unusual double ended steam train from the National railway museum in Yorkshire; push me pull U train by Mike Kanssen, on Flickr It doesn't look like it could carry much coal!
  34. Petrochemist

    Landscapes in B&W

    You were perhaps more accurate than you thought before editing your post. It is after all a view of the Dedham vale, which inspired John Constable, and taken from a spot only half a mile from his house.
  35. Petrochemist

    Show "Light"

    Full spectrum tele rainbow small by Mike Kanssen, on Flickr
  36. Petrochemist

    Architecture Show "Old Building(s)"

    It was actually being built the last time I walked along that part of the Thames (makes me feel old). Most of those international tourists would have also seen the Tower of London which is about 900 years old IIRC so perhaps we can let them off. :)
  37. Petrochemist

    Architecture Show "Old Building(s)"

    Harwich's cinema by Mike Kanssen, on Flickr The Electric Palace in Harwich, one of England's first purpose built cinemas now 110 years old (Originally it was gas powered) & captured on one of the very few recent occasions it didn't have a load of cars parked directly outside! It feels a...
  38. Petrochemist

    Portraits, any camera, any color, any subject

    P1160504 by Mike Kanssen, on Flickr I think the colour here was Red & Infra red (590nm+ filter), but I could be wrong as I didn't note it at the time.
  39. Petrochemist

    Challenge! Post an image of yours related to the one above it!

    Geoff's shard by Mike Kanssen, on Flickr
  40. Petrochemist

    Places of worship

    Floodlit church by Mike Kanssen, on Flickr
  41. Petrochemist

    Show: Fire & flames

    I've never actually been diagnosed as a pyromaniac but I do certainly see the beauty in fire. Having just seen a selection of fabulous fire shots in the 'post an image related to the one' above thread I went looking for a thread on fire & couldn't find one so decided to start one! Here's one of...
  42. Petrochemist

    Show Seascapes

    A very dramatic selection Mel, that shows me an area of Ireland I've no familiarity with at all. I think it's worth adding as an option for when Covid finally dies down to the point we can travel freely again. :)
  43. Petrochemist

    Stroll Seen while strolling...walking and wandering outside

    There are CPLs that work in IR, but I don't think any of mine do. Most normal filters (including CPLs & NDs) are fairly transparent above 750 to 800nm they'll have minimal affect on your 720nm converted camera. Yes you're right you can go higher. Basically your conversion blocks everything below...
  44. Petrochemist

    the Cemetery image thread....

    Breedon church (Infra red) by Mike Kanssen, on Flickr
  45. Petrochemist

    Stroll Seen while strolling...walking and wandering outside

    Thank you. The camera isn't ideal as it doesn't have a viewfinder (rather a pain in bright sunshine). My more recent full spectrum A7ii is now my preferred option. I was able to get a clip in hot mirror that more or less reversed the conversion allowing one camera to fill both roles. Sadly I...
  46. Petrochemist

    Nature Show 'Insect'

    Bee in infra red by Mike Kanssen, on Flickr
  47. Petrochemist

    Challenge! Post an image of yours related to the one above it!

    I'll go with the caged birds :) vulture IMGP1337 by Mike Kanssen, on Flickr
  48. Petrochemist

    Stroll Seen while strolling...walking and wandering outside

    That shot was with my GF2 which has supposedly been full spectrum converted (but has very poor UV response), I'd added a red (#25A) filter for that shot (as I often do). I think the colours here were straight out of the camera. I've al;so shot IR with quite a few other cameras - In total I have...
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