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renaud

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About renaud

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  1. renaud

    Micro 4/3 Converted IR Camera

    Of course the choice is yours, but while screw-in filters were a problem with SLRs (you had to aim and focus then put on the filter and take the picture), which led to the prevalence of dedicated conversions, the problem disappears with electronic viewfinders. You don't have to fiddle with the filter in the field, it can stay on the lens the whole time. Anyway, one thing to consider if you choose a dedicated conversion is that you can add a 720nm filter in front of a 590nm converted camera to take 720nm pictures, but you can't do the reverse.
  2. renaud

    Micro 4/3 Converted IR Camera

    Hi, I'm using a converted GX7 for UV and IR imaging. I went for the full spectrum conversion (clear glass in front of the sensor) and use external screw-in filters, so I can easily switch between standard IR (~720 nm cut-off), deep IR (~850 nm), UV or visible. I would recommend it if you're not sure which wavelengths you will appreciate most. Apart from the hotspotting issue with certain lenses, IR isn't particularly difficult nowadays. Be sure to shoot raw and experiment with the color balance. Good luck.
  3. renaud

    Member polls

    "Would you prefer a post with or without a poll?"
  4. Wow, that was in the 80's. You sure can hold a grudge. Remind me to never wrong you in any way...
  5. renaud

    All the 5's

    The reason to use a smaller sensor to increase reach (instead of cropping afterwards from a larger frame, assuming you're using the same lens of course) is quite simple: if you're going to use only the center part of the sensor, you might as well have a viewfinder that shows you what you're interested in (with a higher magnification as well). Not having to move those useless pixels is an added bonus, but since fast and large cards are now quite cheap, the advantage is not huge.
  6. renaud

    Google Violations

    Google is known to rely on automation a lot, dispensing with the human element wherever possible. Finding sentences such as "click on the ads" is obviously within the capacities of their bots, and identifying nudity in pictures can be automated to a large degree, so it doesn't have to come from a complaint.
  7. renaud

    Firmware update for 300/4 PF ED VR

    Yes, Nikon 1 lenses can be upgraded by the user, using the same simple procedure as Panasonic and apparently Fuji (no administrator password required): copy firmware on the root of the card, then navigate to the firmware item on the camera menu.
  8. renaud

    Yet another 1Jsomething

    OK, so the consensus seems to be that this is not a real (technical) restriction and that Nikon's legal services are trying to limit their liabilities in the face of ill-advised warranty claims. There is already a disclaimer to that effect under the restrictions tab for lenses over 380g (a much broader set than the one in discussion here), but hey, if you get a chance put similar yet not completely overlapping information in two separate places, why not do it? (I am absolutely not implying that this logic also applies to camera menus ).
  9. renaud

    Yet another 1Jsomething

    I just stumbled on a surprising bit of information when looking at the FT1 product page: it seems that the J5 (and only the J5 at this time) will not be compatible with quite a few lenses. Those are super telephoto, unlikely to be found in the J5 owner's belt pouch, but still I find this intriguing. I can't find any logic to it: there are AF, AF-I, AF-S even Ai-P lenses, some G, some E, some with aperture rings. The 2/200 and 2.8/300 are in the list but not the 4/300 or x-300 zooms, so it's not just a focal length question. It's not aperture either so I don't know why lenses end up in the list. Does anyone have an explanation? Should we expect future 1 product to exhibit the same restriction? See for yourself here (scroll down for the list).
  10. Thanks for the suggestion, I will try. The hotspot doesn't bother me since most of my pictures with this camera are processed to monochrome. However, prospective buyers should be aware of this.
  11. I'm using a full-spectrum modified Nikon V1, mostly with a B+W 092 filter (695 nm), occasionally with a 093 (825 nm). I also have a Sony RX100 converted with a 720 nm filter. The lens has a hot spot, which is more visible at the long end and when stopping down. I'm using it mostly for monochrome, where the hot spot is invisible, but if you're into false color this is not the camera to choose.
  12. renaud

    Any suggestions on my next UV camera

    One feature I've found very useful on my own UV camera (Panasonic GX7) is the ability to tweak the appearance (color, sensitivity) of focus peaking. I think the Sonys can do it as well, I'd suggest to check if this is available on the Fujis.
  13. renaud

    Nikon D810A introduced today

    Canon has offered a 20Da and more recently a 60Da based on the same idea, and I don't think that these models encountered much success outside the astrophotography community. These are niche products, and their niche doesn't overlap with the terrestrial IR photography niche (which surprisingly isn't served by manufacturers, despite being a profitable one, as shown by the whole cottage industry of camera conversion).
  14. renaud

    Back in business

    Glad to know you finally agot a working IR camera. Any ideas about what went wrong with your first conversion attempt? Great picture, and I can relate to your problems making panoramas with the V1, keeping the focus in one place while shooting a sequence is problematic, to say the least.
  15. renaud

    IR sensor filter for D80

    I agree that thickness isn't critical optically speaking, but the filter holder can only accept a certain range of dimensions. If no one knows the size of the internal filter, the best is to take the camera apart and measure it before ordering your replacement IR filter.
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