Photography Film Types and Film Speed Reviews
The result of his efforts is a final photographic film roll, a handful of prints or slides box. Unlike your choice of lenses, the choice of film will have the greatest impact on the quality of final results.
DIGITAL CAMERAS
While most of this is irrelevant for digital cameras, always apply the rate "film".
A FILM SELECTION
1. The first choice is slide (positive) or a printing film (negative).
To print
Greater exposure latitude (about 9 stops against slides 5 stops)
Cheaper
Impressions facilitate
Ideal for inexpensive compact cameras
Sliding (also known as inversion or a transparent film)
Greater color saturation and contrast (the film in particular professional)
In the "middle-man" to adjust the color balance or exposure
Much easier to digitize
You need a good camera for correct exposure
As slide film has 5 stops of latitude, correct exposure is much more critical than the print film. black and white film is now negative. Now long abandoned. There are techniques for creating slides B + W Negative Film.
You can watch slide and compare the digital version for a color balance. Summary: If you want to go to print film copies. If the quality slides or scanning.
2. Next choice is the film speed.
As with everything else in life, choosing the speed of the film is a commitment to exercise. Film slower speeds (lower ISO) has a finer grain but more needed light means slower shutter speeds, and can interfere with shooting.
Faster film speeds allow faster shutter speeds, but the increase of the grain size can be distracting.
ISO 100 or slower for finer grain. To speed printing film has virtually replaced ISO 100 as the quality of modern films have grain comparable or better than last year 100 ISO.
ISO 400. When you need faster shutter speeds for action shots or middle low light conditions. Grain is visible at that speed.
ISO 1000 or faster. Use in low light conditions, such as inside and dusk. You can explore this result grainy, gritty photographs.
FILM PRESERVATION
With the aging of the film changes color. This color cast is subtle but noticeable. For example, a new factory fresh film may have a slight red cast film where he (and the same lot), that sat on the shelf of a store for a year may be a slight greenish tint.
At some point in his age the film will have a perfect color balance where the predominant color is minimal.
For print film, you can usually be ignored as photo lab printing machines automatically compensates for this distribution and produce acceptable prints (although probably inaccurate). slide film is more sensitive due to the fact that you see the film itself is not printed.
Think fruit in grocery stores. The news coming slightly green bananas ripen and shelves.
Manufacturers also make the film "professional". This is the same as the non-pro film (often, it really is better), but was allowed to age for manufacturers for optimal color balance. The additional cost for the film ensures that pro.
Some stores camera and photo labs feature refrigerators containing professional slide film - keeping the film slows costs this aging process. Storing movie in your own refrigerator helps keep you cool when stored for a period or in hot climates.
Films beyond expiration dates can still be used, but you must be careful. In addition to the color tone mentioned above, which may be important, the film may dry and crack.
The result is prints that resemble the crazy paving! (I had this experience with an old black and white film). Buy movie as you need. extreme temperature and humidity can actually make the film suffers, store them in a cool, dry place.
Major brands such as Kodak and Fuji are very good films and you pay a little more than small brands at the best quality. Ilford made some excellent black and white films.
Kodachrome is number one for archival films. Kodak color film are generally stronger in the red part / yellow spectrum. Supply red, yellow tones and beautiful looking skin. Fuji films are traditionally stronger in the green portion of the spectrum. Velvia 50 is excellent, now discontinued, replaced by Velvia 100.
DX FILM SET
In most 35mm roll film, it is a model that is somewhat similar to a bar code. This is the film speed encoded in the container. It enables cameras that support the DX coded containers to automatically adjust the speed of the film.
Very useful if you frequently use the different film speeds and forget to reset the speed of the film. It also simplifies compact cameras to the point where they do not allow manual setting of the film speed.
A little history
Many there many years, the two film competition in speed designation systems to be the default. One was defined by the DIN standard body other by ASA standards body.
The DIN system is an additive scale, where each stop of the film speed changes the number of DIN three. So to increase exposure to evade arrest for three adjustment DIN film speed, and reduce exposure to add a stop three.
To increase exposure to a half-speed setting of the ASA judgment film and reduce exposure to a judgment of the bend.
The system simplifies DIN exposure compensation settings, WING but the system is more similar to how the remaining work of the camera (ie, twice the shutter speed or stopping halves), and finally chose for the standard ISO.
It will say something like ISO 50/18 °
Example equivalent ISO / DIN:
ASA / ISO == DIN
25 == 15
50 == 18
100 == 21
200 == 24.
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