Napioa - Wind Origins

Napioa - Wind Origins
by octopus                

Submit your Photo
Hall of Fame

Please participate in Meta
and help us grow.

New answers tagged


The Canon 7D Mark II is a very configurable camera. One of the options the user has is to choose which options are selectable from various menus. ISO speed setting increments is one such choice. On page 434 of the EOS 7D Mark II Instruction Manual there are instructions on how to set Custom Function 1 (C.Fn1: Exposure) --> ISO Speed Setting Increments to ...


Check advanced options to see if ISO step is in 1... if it is, change it to 1/2 or 1/3 as needed.


Whether this is where you found it or not, the definition you give for "Unity Gain ISO" comes from the Clarkvision web site's section on digital sensor performance. As an updated version of that page explains, it's a silly concept. To quote: The fundamental reason Unity Gain is not relevant is because the sensor in a digital camera is an analog system, ...


Unity gain is such ISO number at which camera outputs pixel values roughly equal to numbers of electrons in cells. Native ISO is such ISO value at which the maximum number of electrons in cell is matched to saturation point. It is almost always division instead of multiplication for sensors with big enough electron capacity per cell. Native ISO is as unique ...


I found some information on DP Review like "The latest crop of sensors used by Nikon (D3x, D3100 and D7000) are rated with base ISO at 100 value. The previous generation all had 200 base ISO (D300, D3, etc)." From the sentence, we can see that "Base ISO" is the lowest ISO Value a camera can offer.


The R72 has a filter factor of 16. Now a filter factor is a multiplier. We use this value by multiplying the exposure time without filter. Thus if the exposure time without filter is 1 second, then 1 x 16 = 16 seconds with the filter mounted. Alternately, the published ISO without filter is divided by the filter factor. If a film is rated at ISO 400 without ...


I suspect metering will not be useful in that situation. The metering responds to visible light, which the filter blocks. The metering does not respond to infrared, which the filter passes. I think you are on trial and error. This article (with some experience) says compensate to about 9 stops down ...


Perhaps the proper question is, what is the filter factor for the R72 filter. (how many stops of light does x filter block ) i am sure there is a general filter factor known for the filter but i do not know it. I would shoot the film at its rated ISO ( unless i have tested the film with my development and determined that another ISO gives better results ( ...

Top 50 recent answers are included