• petrochemistpanorama_fish_eye
    208 posts
    2 years ago

    Thanks!
    The colour separation has a large element of pot luck - it's considerably less on this shot, taken just a few minutes apart (same filter/WB/lens/processing...)
    live.staticflickr.com/3677/13392716463_33f7149dd5_c.jpg

    Dovercourt park IR by Mike Kanssen, on Flickr

  • HaroldC3panorama_fish_eye
    40 posts
    2 years ago

    Not a great image but I reminded myself why I like to shoot IRChrome. I love the oranges and reds the filter produces. Definitely going to give it a go when I get some more sun.
    IMG_3042-2560px.jpg

    IMG_3042-2560px.jpg

    JPG, 3.8 MB, uploaded by HaroldC3 2 years ago.

  • jomanpanorama_fish_eye
    164 posts
    2 years ago

    D81_0772.jpg

    Town Square, Summerville, South Carolina

    D81_0772.jpg

    JPG, 737.4 KB, uploaded by joman 2 years ago.

  • 43reviewpanorama_fish_eye
    2 years ago

    M1II3877_DxO_filtered.jpg

    Pico del Teide

    M1II3877_DxO_filtered.jpg

    JPG, 2.7 MB, uploaded by 43review 2 years ago.

  • Athenapanorama_fish_eye
    118 posts
    2 years ago

    Ooh, that's a neat colour palette!

  • Athenapanorama_fish_eye
    118 posts
    2 years ago

    On the ferry between Nanaimo and Vancouver. Full spectrum conversion with a blue/IR filter and heavy post processing in Lightroom.

    P1030969.jpg

    P1030969.jpg

    JPG, 1.3 MB, uploaded by Athena 2 years ago.

  • jomanpanorama_fish_eye
    164 posts
    2 years ago

    Another interesting image! My sister lives not too far from there in Ladysmith. She watches the ships go by from her kitchen window.

  • raythentichelp_outline
    252 posts
    2 years ago

    Another one with the (IR modded) Sony DSC-W15.

    live.staticflickr.com/65535/52828110528_578a2de325_b.jpg

  • HaroldC3panorama_fish_eye
    40 posts
    2 years ago

    Some lovely skies at a local pond this evening. I was testing out the Canon ef-s 18-135mm lens in hopes it would be a good superzoom solution. Unfortunately, the copy I received turned out to be just okay. The IQ was not as good as I was hoping for. Also, it has an issue with the AF motor so it's going back anyway.

    Canon M6, 590nm.

    IMG_3077-2560px.jpg

    IMG_3077-2560px.jpg

    JPG, 3.0 MB, uploaded by HaroldC3 2 years ago.

  • Athenapanorama_fish_eye
    118 posts
    2 years ago

    Another one from the archives. This was near the start of my exploration of false colour infrared and I used a dark orange filter on a full spectrum conversion. I wound up using dark red most of the time but the orange filter has some nice character too. Most post production in Lightroom with a channel swap and hue refinement in Photoshop.

    Creek.jpg

    Creek.jpg

    JPG, 839.5 KB, uploaded by Athena 2 years ago.

  • jomanpanorama_fish_eye
    164 posts
    2 years ago

    Do you know what the cutoff on that orange filter is? I'm thinking somewhere in the 590nm range.

  • Athenapanorama_fish_eye
    118 posts
    2 years ago

    It's a B+W 040, and it looks like they still have some specs up on their website. If I'm reading the chart right it starts dropping off around 575nm and cuts completely by 525.

  • jomanpanorama_fish_eye
    164 posts
    2 years ago

    It appears that convention is to give the value of the filter equal to the intersection of the wavelength at 50% transmission. So, this 040 filter is about 550nm. Nice to know that there are other options out there. I do have a number of black and white filters I could be using.

  • Athenapanorama_fish_eye
    118 posts
    2 years ago

    Heh, now that you mention the convention re: wavelength cutoffs, I see that the filter is described as an Orange 550 so that makes perfect sense.

    I originally picked up the Yellow, Orange, and Dark Red from that page. As I mentioned above, after my initial experimentation I started using the Dark Red 630 as my default. However, now that I've gotten better at fine tuning the colour palette, I think I'm going to start using the Orange more. I might even have to pull out the Yellow again to see if I was hasty in avoiding it.

  • jomanpanorama_fish_eye
    164 posts
    2 years ago

    I got out my old black and white filters. One was by Nikon, and was designated 'B12'. It is a medium blue color. After a minute with google, I found out it is their version of a 80A filter. I have a Nikon D810 camera that I had converted to full spectrum. Anyway, I wanted to see the effect of using this filter. So, here is a test image.

    www.gophotog.org/allphotos/infrared3/large_photos/D81_1057.jpg

    By the way, the filter is 52mm in size and fits my 50mm f1.8 AF-D lens. The one with the screw motor focusing.

  • petrochemistpanorama_fish_eye
    208 posts
    2 years ago

    I'm glad I'm not the only one who's heard that convention, but my testing suggests there is also a fair bit of leeway, the measured 50% point often being 10-20nm from the claimed value. Mind you it's highly unlikely that small difference will show in typical IR shots.

  • mdluceropanorama_fish_eye
    6 posts
    2 years ago

    BULegacyPkwy-013May3119-Edit.jpg

    Bountiful Ponds, near Salt Lake City, Utah. Image captured with a 590nm converted Nikon

    BULegacyPkwy-013May3119-Edit.jpg

    JPG, 301.3 KB, uploaded by mdlucero 2 years ago.

  • jomanpanorama_fish_eye
    164 posts
    2 years ago

    I really like this one!