User_6667263

<p>Steller's Jay.</p><div></div>

<p>Black bear. Sequoia National Park.</p><div></div>

<p>I converted my old Bogen head to the more commone Arca-Swiss quick release system with the clamp at http://www.ebay.com/itm/Desmond-DBA-1-60mm-Screw-Clamp-Arca-Manfrotto-RC2-Compatible-ideal-Bogen-Head-/361331877095?hash=item54210ee4e7:g:VDgAAOSwT6pVkZ1E</p>

<p>Blooming saguaro.</p><div></div>

<p>Saguaro in bloom.</p><div></div>

<p>Trichocereus.</p><div></div>

<p>North American B-25 Mitchell.</p><div></div>

<p>Great horned owl and chicks nesting in a saguaro.</p><div></div>

<p>One other thought is to consider a 5Ds or 5Dsr. You can do a 1.5 crop on the 50 megapixel image and the result is a 22 megapixel image. This gives you a high resolution full frame and the reach you would get from a crop sensor in a single body.</p>

<p>Galapagos tortoise.</p><div></div>

<p>Pink-backed pelican.</p><div></div>

<p>DC-7B coming back to life.</p><div></div>

<p>Mule deer chewing her cud.</p><div></div>

<p>Mary, I thought I got that name from the identification guide sold by the Tucson Botanical Gardens at their Butterfly Magic exhibit because I have a photo taken there that looks like yours with that name. However, I cannot find that butterfly in the guide. I must have gotten that name by showing my photo to one of the docents. That makes the identification suspect in my opinion.</p>

<p>Santa Catalina Mountains.</p><div></div>

<p>Mary, I think the common name of your butterfly is Pink Lady.</p>

<p>Roadrunner.</p><div></div>

<p>Flying bull...from the 91st annual Fiesta de los Vaqueros in Tucson.</p><div></div>

<p>Arizona sunset.</p><div></div>

<p>Messerschmitt ME-262 replica.</p><div></div>

<p>Assume the Sony sensor has a dynamic range of 14 stops. Assume the analog signal from the sensor has a range of zero to five volts. Assume a 14 bit A/D converter. Then:<br> 0 volts = a brightness level of zero and is converted to binary zero by the A/D converter.<br> 5 volts = 14 stops brighter and is converted to 16383 (2^14 -1) by the A/D converter.<br> Assume a Canon sensor with a dynamic range of 6 stops. Then:<br> 0 volts = a brightness level of zero and is converted to binary zero by the A/D converter.<br> 5 volts = 6 stops brighter and is converted to 16383 (2^14 -1) by the A/D converter.<br> The A/D converter converts the minimum and maximum analog signal into the minimum and maximum binary value that the converter and generate regardless of the range of brightness that the analog signal represents.</p>

<p>The old west.</p> <div></div>

<p>Harris's hawk.</p><div></div>

<p>Gray hawk.</p> <div></div>

<p>Alert cheetah.</p><div></div>