I'm only a few days ahead of you, Rick, and I know I needed a head start. :)
On Wed, Feb 25, 2015 at 8:56 AM, Rick Womer <[email protected]> wrote: > Thanks! I feel marginally smarter now. > http://photo.net/photos/RickW > > > On Wed, Feb 25, 2015 at 12:00 AM, Darren Addy <[email protected]> wrote: >> A "full spectrum" conversion removes the low pass IR filter/AA filter >> sandwich that sits in front of your camera's sensor. It is replaced >> with a clear "window" (the quality of which is normally what makes the >> real price difference between conversions). Once that is done, your >> sensor is open to whatever filter you put in the optical path. That >> filter could be on the front of the lens (as we normally think of >> photographic filters) or it could be behind the lens, in the body. >> >> They can be used for Infrared Photography. Depending upon the >> wavelengths you let through, you can get various looks of IR imagery: >> http://procamerarepair.3dcartstores.com/Infrared-Sample-Photos_ep_69.html >> >> They can be used for UV Photography: >> http://www.ultravioletphotography.com/content/ >> >> Or they can be used for "narrowband" photography, which is the main >> thing I want one for. As you guessed, that involves astrophotography. >> Moonlight and city lights/street lights can interfere with ordinary >> imaging. But with a full spectrum camera you can put a narrowband >> filter (like a Hydrogen Alpha filter) in the light path and photograph >> very faint objects (that emit Ha) even in (what would otherwise be) >> the glare of the moon or light pollution. >> http://www.astropix.com/HTML/I_ASTROP/DSLR_HA.HTM >> >> This is a beautiful and educational video, if you are interested in a >> good explaination of narrowband astrophotography: >> http://www.youtube.com/watch?v=E842Rs-iB2I >> >> It is still possible to use a full spectrum camera for regular >> photography of one puts the UV/IR low pass filter (that was in front >> of the sensor) in front of the lens again. I also read that this can >> be done (without a filter) with a custom white balance, but I'm more >> interested in using the full spectrum camera for the "weird" stuff and >> using an unmodified camera for photography as God intended. >> :) >> >> On Tue, Feb 24, 2015 at 7:21 PM, Richard Womer <[email protected]> wrote: >>> Stupid Question Department: What's a full spectrum camera? Is it for >>> astrophotography? >>> http://photo.net/photos/RickW >>> >>> >>> On Tue, Feb 24, 2015 at 1:00 AM, Larry Colen <[email protected]> wrote: >>>> I had mine done at pro camera repair in San Diego. I don't think that they >>>> removed the AA filter, you could ask them yourself: >>>> http://www.procamerarepair.com/ >>>> >>>> >>>> Darren Addy wrote: >>>>> >>>>> Greetings, >>>>> I'm considering saving my nickels to get my K-01 converted to a full >>>>> spectrum camera. If I'm not mistaken there are a few on the PDML that >>>>> have gone this route. >>>>> >>>>> I'm not clear on whether BOTH IR-Cut filter and the AA filter is >>>>> removed as part of the process. With a Canon these are essentially >>>>> sandwiched together (at least the Canon Digital Rebel XSi (450D), XS >>>>> (1000D), T1i (500D)& T2i (550D) according to this page: >>>>> http://dslrmodifications.com/rebelmod450d4.html >>>>> This page has an illustration (a ways down) of a similar look at the >>>>> K-5 II and I'm assuming that is similar to the K-01 >>>>> http://www.imaging-resource.com/PRODS/pentax-k5-ii/pentax-k5-iiA.HTM >>>>> >>>>> Those of you that have had Full Spectrum conversion done, do you know >>>>> what material was used as the clear window in your conversion? >>>>> >>>>> If your converted camera has Live View, I'm curious as to whether >>>>> there is enough light to focus with an IR filter (or some such) in the >>>>> optical path and using Live View. If that is possible, then I think >>>>> that the K-01 is an excellent candidate for putting a filter inside >>>>> the body (no mirror to worry about). >>>>> >>>>> I also *just* discovered that you can use the PC/AV OUT on the K-01 like >>>>> this: >>>>> >>>>> http://www.pentaxforums.com/forums/138-pentax-k-01/227354-probs-med-k-01-life-view-ext-tv.html#post2420487 >>>>> That example is using video recording to make its point and I've just >>>>> sent the poster a question to see if it works with Focus Peaking on >>>>> still shots as well. If so, I'd like to get an external LCD monitor to >>>>> aid in focusing for astrophotography. Or maybe just figure out how to >>>>> hook it up to a laptop? I'm sorta dumb about these adapter questions. >>>>> >>>> >>>> -- >>>> Larry Colen [email protected] (postbox on min4est) >>>> >>>> >>>> -- >>>> PDML Pentax-Discuss Mail List >>>> [email protected] >>>> http://pdml.net/mailman/listinfo/pdml_pdml.net >>>> to UNSUBSCRIBE from the PDML, please visit the link directly above and >>>> follow the directions. >>> >>> -- >>> PDML Pentax-Discuss Mail List >>> [email protected] >>> http://pdml.net/mailman/listinfo/pdml_pdml.net >>> to UNSUBSCRIBE from the PDML, please visit the link directly above and >>> follow the directions. >> >> >> >> -- >> Life is too short to put up with bad bokeh. >> >> -- >> PDML Pentax-Discuss Mail List >> [email protected] >> http://pdml.net/mailman/listinfo/pdml_pdml.net >> to UNSUBSCRIBE from the PDML, please visit the link directly above and >> follow the directions. > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. -- Life is too short to put up with bad bokeh. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
