Q+A: Photography Help
I am going on holiday and want to take my camera with me what steps do you sugggest I should take to protect my gear.
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I have just found some 35mm Fujichrome Velvia 50 and 100 in my freezer, dated December 2004 and December 2006 respectively. The film has been frozen since I bought it, when it was well within date. Could you offer any guidance as to whether it would still be usable?
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Having just become the proud owner of a Leica IIIf with Leitz Elmar f/3.5 50mm lens, could you tell me how much such a camera might cost were it possible to buy it new today? According to the serial number, the camera was manufactured in 1951. I have searched for 1950s advertisements that might indicate what new Leica IIIf prices were like in the UK around that time, but could only find prices for second-hand Leica equipment. A friend suggested that my lack of success may have been due to certain UK import restrictions on German manufactured goods after 1945, and that perhaps the purchase of new Leica equipment in the UK was not possible at that time. Is this correct?
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In 1961, Geoffrey Crawley wrote that potassium and sodium ions in developers are not exactly equivalent, possibly due to conversion of the developing agents to sodium or potassium salts. For developers with low concentrations of developing agent, potassium carbonate gives lower contrast than sodium carbonate and, by the time the same contrast has built up, will give greater toe speed. Does he still consider that potassium carbonate gives higher speed than sodium carbonate? US chemists have suggested using propylene glycol as a solvent for the developing agents as it reduces oxidation. The solvent is typically present at about 2% concentration in the working solution. Is it likely to have any effect on film speed or sharpness?
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Is is best to use a tripod, a monopod or rely on a camera's stabilsation (IS) system when photographing wildlife?
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I have several bound copies of Amateur Photographer, do these volumes have any value?
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