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| bio | website | jonrista.com |
|---|---|---|
| location | Denver, CO | |
| age | 33 | |
| visits | member for | 2 years, 10 months |
| seen | 1 hour ago | |
| stats | profile views | 1,762 |
I am a relatively new photographer, having been at if for only a few years. I chose Canon gear when I finally took the plunge into DSLR. I am an avid hobbyist now, and love everything about photography, from the gear, to the science, to the art. I spent years reading about the technology and photography theory, so I am very well versed in the technical aspects of photography. My artistic skills are moderate, but improving. You can see my work @ the following sites:
My interests lie primarily in nature photography:
- Birds
- Songbird Setups
- Shore Birds & Waders
- Raptors
- All others
- Astrophotography
- Moon
- Wide Field
- Deep Sky
- Landscapes
- Wildlife
- Floral Macro
- Insect Macro
- Abstract
I currently use the following gear:
- Cameras
- Canon EOS 7D
- Canon EOS 450D (Rebel XSi)
- Lenses
- EF 16-35 f/2.8 USM L Wide
- EF 50mm f/1.4 USM
- EF 100mm f/2.8 USM Macro
- EF 100-400mm f/3.5-5.6 IS USM L Zoom
- EF 300mm f/2.8 L IS II (Periodic rentals)
- EF 500mm f/4 L IS II (Periodic rentals)
- EF 600mm f/4 L IS II (Periodic rentals)
- Canon EF 1.4x TC III
- Canon EF 2x TC III
- Kenko 1.4x Teleplus Pro 300 DGX
- Filters
- Lee Foundation Kit (x2) + Tandem Adapter
- Lee .3/.6 ND
- Lee .3/.6/.9 Soft Grad ND
- Lee .3/.6/.9 Hard Grad ND
- Lee CPL
- Tripod
- Gitzo Systematic GT3532LS 3S. Series 3 Tripod
- Jobu Pro 2 Gimbal
- Gitzo Mountaineer GT0541 4S. Series.0 Tripod
- Gitzo GH1780QR Series.1 Mag. Center Ball Head
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May 15 |
comment |
Why does a bigger sensor have better dynamic range? The benefit of Sony Exmor is that it is digital readout. The signal is only analog so long as the charge remains in the pixels. Upon read, on-die column-parallel ADC immediately converts the analog charge of each pixel into a digital unit. High frequency components (clock, pll, etc.) are placed elsewhere on the die to eliminate high frequency noise introduction in the ADC circuitry. The image signal is not read twice...a "reset read" is performed when the sensor is reset to accumulate digital CDS as a "negative result", which is then applied to the "image read" upon exposure. |
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May 15 |
comment |
Why does a bigger sensor have better dynamic range? This answer is a good start, however it is missing a critical factor: Electronic noise. Yes, it is true that you have improved dynamic range (and less photon shot noise) with larger pixels. It should be noted, however, that gains made with larger pixels can be LOST due to electronic noise in the sensor circuit, as well as in the readout and conversion circuitry. Theoretically, the Canon 1D X should have more dynamic range than the Nikon D800, yet the D800 has a full two stops more DR. Why? The D800 has FAR less electronic noise (~3e-) than the 1D X (~36e-). |
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May 14 |
reviewed | Approve suggested edit on autofocus tag wiki |
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May 14 |
reviewed | Approve suggested edit on Where can I find or make a script for focus stacking using Raynox DCR 250? |
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May 14 |
reviewed | Approve suggested edit on dslr tag wiki |
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May 14 |
reviewed | Approve suggested edit on Do you still need an ultra wide angle if you can now stitch images? |
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May 13 |
comment |
How to tell if a photo is not developed on a photographic paper? If that is the actual question (which wasn't actually asked), you could probably solve the problem either with a little heat (LITTLE heat) or a little cold. The glass and the paper will expand or contract at different rates, which should help loosen the paper. I'd say either one is probably safer than immersion in water...photographic paper or otherwise. |
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May 13 |
comment |
How to tell if a photo is not developed on a photographic paper? Baryta papers for inkjet are largely the same as photographic papers, with the exception of the dye layers. Once a photographic paper is actually exposed, I am not sure there is any large enough difference in "feel" to really give you enough information to tell the two apart. There may be differences in gloss differential...if you tilt the printed pages towards a light source until gloss maximizes, you might eventually learn to detect nuanced differences in gloss differential...but, again...there are a wide variety of both true photographic papers as well as baryta IJ papers... |
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May 13 |
comment |
How to tell if a photo is not developed on a photographic paper? I'm curious why you want to know whether you can "tell the different" simply by feel...what is the purpose of that? What is the benefit of having that skill? There are a wide variety of true photographic (exposed by light) papers out there as well, on a variety of paper bases, with varying levels of gloss, different pigment formulations, etc. I don't think anyone who is not a professional in the business could literally just "tell the difference" by touch alone. |
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May 13 |
answered | How to tell if a photo is not developed on a photographic paper? |
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May 12 |
answered | How to batch edit a collection of raw files in Darktable? |
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May 12 |
answered | How can I achieve this look |
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May 11 |
comment |
Light weight double sided inkjet book paper Well, I know about papers in the US. Here is one. It is 32lb (120gsm)...seems fairly cheap, but I couldn't find anything else that said double-sided and had any reference to the paper weight. |
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May 9 |
reviewed | Approve suggested edit on multiple pictures give different shades for same scene and lighting |
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May 6 |
reviewed | Approve suggested edit on What makes sound in a DSLR camera? |
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May 6 |
comment |
What's the difference between Canon's silent and non-silent shooting? The mirror is moved up in quiet mode in a different way, and Canon designed some kind of buffering latch mechanism for the mirror that nearly eliminates the "slap", and makes a nearly silent (whisper-level) "thud". The shutter still makes noise, and I gather that in normal shooting (with the OVF, rather than live view), the full shutter with both curtains still does its thing...so 40-50dB sounds about right. Quiet mode does slow things down a bit, but the overall "aesthetic" of the sound is just less jarring, softer, more appealing...even if it is still 50dB, it doesn't "feel" that loud. |
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May 6 |
comment |
What's the difference between Canon's silent and non-silent shooting? @mattdm: On the 5D III, quiet or silent mode is quieter than "normal conversation", while normal mode is about as loud as "normal conversation". Someone at FM forums stated normal was 60dB, while quiet was 50dB (which would fit with the "quieter than conversation" bit.) Someone on CR forums stated quiet mode was between a whisper and a refrigerator, which put it somewhere around 30-35dB. Not sure exactly how those were measured, never got any clear feedback on that, however wedding photographers certainly seem to think it is very non-intrusive during weddings. |
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May 6 |
answered | What's the difference between Canon's silent and non-silent shooting? |
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May 5 |
awarded | Nice Answer |
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May 5 |
answered | Light weight double sided inkjet book paper |
