Tuesday, February 25, 2014

At first Darkroom - Push Sending Your Film


Do one needs some practical experience processing your own film? Want to go to the next level and have more management of your negative quality? Then push processing is your next step.

Push processing is exposing every film at a higher ISO than it is rated, and modifying development (usually time) to compensate. Push processing is generally done for one or more of four reasons:

1. A faster film is required

2. Coerced for effect (increase whole grain products size)

3. Pushed for contrast (increased contrast)

4. Economy

Generally, the most widely used reason for pushing a film is to access a bit more light sensitive system. It can be used in an emergency , when fast film will not available - or with steady internet flexibility of using existing film stock to transfer to a desired ISO cost.

It is generally cheaper to operate a vehicle slower film than to purchase very fast film (the faster can be the more expensive). It definitely is conceivable to push a proper 400 ISO film to pick 6400 ISO (4 stops) and finished beyond. However, there are consequences to keep in mind when pushing film to these limits. The most obvious side effects when pushing film is an increase in grain size and enhancements made on contrast. These can be excessive and considerable testing is necessary to balance all these has a bearing.

Pushing a 400 ISO show to 3200 or 6400 ISO gives you the ability to photograph under very unethical conditions. This may is useful for night photography or indoor photography certainly where an flash is unavailable or you cannot allowed.

In addition to operate a vehicle for speed, many photographers also want to intentionally push for appearance. The main characteristic process when pushing film is for grain size. The further you push a movie, the greater the almond size. This effect can be cultivated huge grain size which explains used widely for imaginative reasons.

The other effect which might be obtained is to relocate for contrast. Increased contrast is also a effect that some wedding photographers use for aesthetic and/or crispness reasons. A harder looking print may suit some genres better than a normal or lighting contrast. This can be resolved by manipulating the development time.

A combination of friends for grain and push for contrast may also be used. Two world renowned photographers who use this method are Ralph Gibson and Don McCullin. This causes a high contrast, large whole grains negative. Determining how much linked with an characteristic to be exists for the image is resolved by the photographer that can take much experimentation.

Another basis for the pushing is you simply designed a mistake. The last film within the camera was 800 ISO and you just shot a new sprain of 100 ISO directly on 800 ISO. The film can be to 3 stops under exposed if you cannot process normally. To resolve this that you simply simply push process 3 interrupts, problem solved.

Push processing your negatives normally requires into a new mysterious playing field of negative characteristics when you research this method. As well as extending the expansion time for pushing, decreasing developer to vital ratio and increasing high temperature are two additional means to achieve the same result.

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