Talk:Analog photography

message: Is this article really neccessary?  We could just redirect to photography.  --Gphototalk 01:05, 30 November 2006 (UTC)
thread_title: Necessary?

message: Isn't photography with CCD-based cameras by definition digital photography? I am removing all references to CCDs from the article.--Srleffler 07:30, 8 March 2007 (UTC)
thread_title: CCDs are digital?

message: How is a camera using a chemical film analogue? Should we not call it a chemical camera? Foreeye (talk) 15:30, 5 December 2008 (UTC)
thread_title: Chemical is analog?

message: I'm putting this up to prompt, perhaps, more meaningful discussion here and to organize and clarify what I see as a problem with the article in its present form (as well as with many of the comments here on the article's talk page); there is first some discussion of the meanings that 'analog' and 'digital' have and then there is a chart summarizing the 'analog' aspects of (some aspects of) photography; this is all given here as 'original research' so I am putting it here rather than in the main article:
The word 'analog' comes from a root meaning 'proportional', but 'an analog' is (in English, at least) something having some physical similarity to something else.  'Analog' as an adjective can mean either 'analog-like' or 'proportional'---the latter has the additional connotation 'continuous-valued'.  (The connection of 'proportional' to continuous-valued is not entirely obvious but presumably there is some sort of implication that 'proportional' means 'in any proportion' and not just 'in integer proportion').
Digital things, in the sense that they are digit-like (i.e., like fingers), are discrete-valued (countable) things. Thus, 'digital' is an antonym to analog in its 'in any proportion' sense.  Digits are numbers, which are abstract things and not analogies (in that word's 'physical similarity' sense).  Thus, 'digital' (in the sense of number-like) is also an antonym to analog in its 'physical similarity' sense.
analog : digital :: continuous : discrete
analog : digital :: real : abstract
Under the (obsolete) regime of continuous-variable physics, digital things and physical things didn't really overlap in either sense.  Thus, there is a flavor to digital which implies 'abstract and number-like' while there is a flavor to analog which implies 'real and physical'. Digital electronics and now ubiquitous analog/digital conversion together have blurred the usefulness of the original distinctions.  Digital things are now real enough and as proportional-seeming as anything else. Digital things use digital technology and so it has become easier to define 'analog' as 'doesn't use any digital technology'; this distinction is useful in that it precludes things from being 'restored' to analog form after they have been digitized.
analog : digital :: no digital : some digital
So, whereof 'analog photography'?  It's a concept that appears to have some established usage.  Apparently, however, nobody knows exactly what it means or where the lines of inclusion/exclusion are drawn.  Some seem to argue that 'all photography is analog' based either on a claim that all sensors are analog (which is not true; many electronic image sensors are effectively 'digital' since they count photons) or perhaps on the argument that an image is, by definition, an analog. Some say that analog photography is 'synonymous with film photography' (which is also not true; that ignores analog video photography, which even existed for a short time in a 'still' format, as well as some other non-film technologies).  Although I disagreed with it's relevance initially (giving instead more weight to other the definitions of 'analog'), I think the 'doesn't use digital technology in the signal path' distinction is useful, even if it does not capture the historicity of the 'analog' concept which is a significant factor in the way the phrase gets used.
sense of 'analog'                     	film image	traditional photographic print made from film image	scanned and A/D converted film image	print made from scanned and A/D converted film image!sense of 'analog'	vidicon output voltage	vidicon output stored on tape	vidicon output to CRT	charge in CCD imager cells, after exposure	CCD imager readout voltage	CCD imager readout stored on tape	A/D converted CCD imager readout	print made from A/D converted CCD readout
physical analogy to the original thing	
(density : intensity)	
(density : intensity)                             	
(just numbers)                     	
(density : intensity)                                                	
(current : light intensity)	
(magnetization : intensity; position : time)	
(intensity : intensity)	
(electrons : photons)                    	
(voltage : intensity; time : position)	
(magnetization : intensity; position : time)	
(just numbers)                 	
(density : intensity)
continuous-valued                     	
(grain size is non-uniform)	                                                   	                                    	?                                                                     	                      	                             	                     	
(stored charge is a discrete quantity)   	
(unless noise is low enough to count charges)	
(unless noise is low enough to count charges)	                                	?
no digital technology in signal path  	          	                                                   	                                    	                                                                      	                      	                             	                     	n/a                                       	n/a                       	n/a                              	                                	
--Soiregistered (talk) 05:44, 30 November 2009 (UTC)
thread_title:  The 'analog' in analog photography 

message: Flickr (and a lot of other sites) seem to define it as film only. http://www.flickr.com/analog phocks (talk) 03:12, 15 April 2010 (UTC)
thread_title:  Flickr Analog 

message: There is a lot of film types currently manufactured that seem to miss on this rather sad (but essential) list. If someone more expert than me on Wikipedia could add all the Lomographic films currently (as of 2014) made (including the lobster, the turquoise, the purple), the Revolog films, the Washi film (manufactured by lomig perrotin), the black and white infrared Orwo manufactured by Filmotec, Rollei Nightbird, Color Implosion, Cine Still 800, etc 109.25.106.37 (talk) 00:53, 20 November 2014 (UTC)
thread_title:  List of film types listed 

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thread_title:  External links modified 

message: Hi,
I have expanded this article a little by quoting the reference from Lomography.com. (I have added the definition where the reference is linked and the sub-head Growing reasons for popularity .) For both the edits, its the same source. How can I quote the same reference multiple times. Please help. I want to expand this artcile according to wiki policies. If these edits are acceptable, I will continue to work on it.
Best regards - Veera.sj (talk) 10:54, 13 November 2018 (UTC)
thread_title:  How to quote the same reference multiple times