I arm twisted my parents into buying me a Lubitel 2 when I was 8 or 9 years old, under the condition that I had to pay for film and development from my pocket money. Good way to achieve the necessary skills, couldn't shoot more than 1 roll a month at best, so every spoiled picture was a disaster.
Recently I bought one second hand for zilch and it even had the yellow filter behind the turning lid. Great memories and a fine way to get the 100 ASA = 1/125 F16 on a sunny day with compensations for all kinds of weather (F8 for medium cloud cover) into muscle memory.
Works for me.
-80dB at 1V p-p for 5mV phono, not good enough? The point was removal of everything possible Muntzing to the max so to speak. Why not just ignore it if you don't want to play along with a little circuit minimalism experiment?
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Bill, once you get your tripod fixed, I really really really recommend image stacking and median filtering over ND filters (assuming we're talking digital) to handle these huge DR scenes. Set your exposure to a moderately-low ISO (100-400, depending on conditions) and your shutter speed to *almost* blowing the highlights. Now, get about 10 frames at this setting, and then bump the ISO to 1600, and do the same, without changing the shutter speed--don't worry about blowing out the top of the image.
In effect you're mimicking Magic Lantern's 100/1600 dual exposure, then stacking via a median filter (finds the median value of each pixel among the stack)
You'll only be using the ISO 1600 for the very bottom of the exposure to extend your lower DR/noise. It's a fair bit of work and a lot of crunching, but the ultimate base image is so extremely noise free that you can do murder in post processing and the image doesn't even flinch.
*I rarely need that kind of DR, and even less likely to have my tripod with me when I do, but I've done this a few times hand-held with something like a burst of iso400 followed by a burst of iso1600. Even 3-4 images at each ISO works wonders.
I've used the Lightroom to do some HDR in the past as it has a plugin for that. I was messing around with night time shots by street light. I also had some success using masks, but that was very time consuming.
Then I look at the medium format print on my wall of sunset over the pacific coast (erskine wood Erskine Wood Photography : can't find it on his website tho) and wonder why I bother. OK even he uses a D800 now in his 70s
Then I look at the medium format print on my wall of sunset over the pacific coast (erskine wood Erskine Wood Photography : can't find it on his website tho) and wonder why I bother. OK even he uses a D800 now in his 70s
+1
Please, note, on the photos i showed that the sun itself is directly in the scene, and not 100% RVB to keep its color. The only difference with what my eyes was able to capture is the village is a little darker than what I saw. A little, and i could recover-it easily with no noise with masks in Lightroom. But I loved the capture as it was, and, on my side, don't like too much HDR: Like in Hifi, I like the media to be natural and not hyper realistic, not attracting attention on it.
I love minimalist circuits. Did you see my 1 valve 1 resistor complete strain gauge preamp sketch a few pages earlier ?Works for me.
Been thinking about why 5mV input works for you at audioband hf, since most programme material roughly follows a 1/f law as to spectral content one would think the ADC might run low on bits.........but then I remembered this is pre-RIAA, so the RIAA precomp in the recorded programme material fixes the problem somewhat. RIAA precomp improves audioband hf bit quantisation, so long as the ADC is done pre RIAA stage. Even for a more normal level match with the ADC, this should present an improvement for quiet audioband hf I think.
Go Muntzing !
Which is exactly the scenario I am trying to capture. I'll get there eventually, at least with digital once you have camera +sw+calibrated monitor its free to keep trying
Yes of course, but it is to expensive for me and read only parts free of charge.
Damir
An other use of this forum to self-promoting a commercial product ?
Rational ? For sure. Educated ? Not so sure, Nobody is able to give accurate correlation between distortion number and subjective listening experience. Speakers are a perfect example, with their very ugly distortion numbers.
I think you've hit the nail there. If Scott provided about 15 dB of gain before feeding his cart directly into the A-D, there would still be circa 25 dB OL margin at HF on a 5mV cart at 5cm/s. I am imagining a world where you put on a test disk and the system then self cals for flat response and also removes any peaking or other response anomalies.
Very nice!
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Toole has paid a kilobuck to make the latest and lengthy AES paper open access. It should be out soon. Also the McGill >1 hour talk is freely accessible, and has gotten lots of views.
I don't know. For me, always somethings new to learn or discover.
I was just reacting against those name dropping, authors, like Self, mixing with subtlety correct engineering and personal preferences presented as law of physics and acting, in fact, the same way than snake oil gurus... see what I mean ?
Knowledge of electronic science, components behaviors (they are not perfect), correct engineering, improvement and verification of the results by careful and accurate measurements and... modesty about what we believe we know: curiosity, experimentations, careful listening ...
Between pure objectivism and pure subjectivism, the best position is, as often, the middle of the road ?
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