Wednesday, December 18, 2013

Posted by Unknown |
How Does a Photo Enlarger Work?

Types of Photographic Enlargers

    There are two primary types of photographic enlargers: condenser and diffusion. While condenser enlargers use one or more lenses to concentrate light on the negative, diffusion enlargers take unfocused light and disseminate it on the negative. Condenser enlargers create higher contrast images and shorter exposure times, and diffusion enlargers do the opposite. Aside from the way light is distributed over the negative, most enlargers work in the same basic ways.

External Features

    An enlarger's head.

    Each enlarger is controlled by a timer to turn the light bulb inside on and off. The enlarger head (see image) moves up and down a supporting column. Some enlargers have a double column support system and some have a single column, depending on the brand and specific functions. The head can move up and down the column, creating larger and smaller images (the lower the head, the smaller the image). The column rests on the baseboard, where an easel can be placed to aid in printing.

The Negative, Focusing, and the Lens

    The negative is placed in a negative carrier inside the enlarger's head. Focusing knobs on the side fine-tune the distance between the negative and the enlarger's lens to make the image crisp and clear (this distance is enclosed with bellows). The lens has an aperture just like a camera; the smaller the aperture number, the larger the amount of light that passes through. More light passing through the enlarger typically means a shorter exposure time, while less light means a longer exposure time. After an image passes through the lens, it can also pass through filters that adjust contrast. All these individual elements in an enlarger come together to print photographic images.


How Does a Photo Enlarger Work?

Types of Photographic Enlargers

    There are two primary types of photographic enlargers: condenser and diffusion. While condenser enlargers use one or more lenses to concentrate light on the negative, diffusion enlargers take unfocused light and disseminate it on the negative. Condenser enlargers create higher contrast images and shorter exposure times, and diffusion enlargers do the opposite. Aside from the way light is distributed over the negative, most enlargers work in the same basic ways.

External Features

    An enlarger's head.

    Each enlarger is controlled by a timer to turn the light bulb inside on and off.

    Enhance your photography skill,The Top Secret Photography Techniques

    . The enlarger head (see image) moves up and down a supporting column. Some enlargers have a double column support system and some have a single column, depending on the brand and specific functions. The head can move up and down the column, creating larger and smaller images (the lower the head, the smaller the image). The column rests on the baseboard, where an easel can be placed to aid in printing.

The Negative, Focusing, and the Lens

    The negative is placed in a negative carrier inside the enlarger's head. Focusing knobs on the side fine-tune the distance between the negative and the enlarger's lens to make the image crisp and clear (this distance is enclosed with bellows). The lens has an aperture just like a camera; the smaller the aperture number, the larger the amount of light that passes through. More light passing through the enlarger typically means a shorter exposure time, while less light means a longer exposure time. After an image passes through the lens, it can also pass through filters that adjust contrast. All these individual elements in an enlarger come together to print photographic images.



  • Penis Enlargement Truth: Learn How To Increase Your Size By 3"

    penis3x.com

    Discover how to increase your size by 3 ". See which supplements ranked on top. Don't get ripped off by male enhancement companies.


  • How to Do Desktop Publishing and Design

    desktoppub.about.com

    Let's say you've been doing design work for a while. Maybe not years and years, but long enough to be comfortable. How do you bump up your game a notch or two?


  • PenisAdvantageHQ - How to Enlarge Your Penis Naturally

    penisadvantagehq.org

    For the majority of people, talking about the dick can be relatively difficult. This is an area of the human body that is considered very private and is taboo to be ...


  • HowStuffWorks "How Cell Phones Work"

    electronics.howstuffworks.com/cell-phone.htm

    Learn about cell phones, check out our cell phones buying guide, read cell phone reviews and compare prices and features on cell phone accessories.


  • HowStuffWorks "Business & Money"

    money.howstuffworks.com

    The Business and Money Channel contains articles that answer all of your financial questions. Check out the HowStuffWorks Business and Money Channel.


  • What is tagging and how does it work? Facebook Help Center ...

    https://www.facebook.com/help/?faq=124970597582337

    A tag is a special kind of link. When you tag someone, you create a link to their timeline. The post you tag the person in may also be added to that persons timeline.


  • Plan Z by Zola - How Does Plan Z Work? Plan Z by Zola

    www.planzdiet.com/how-does-plan-z-work

    Fast, healthy weight loss and dieting coupled with gourmet recipes and in-depth dieting education.


  • Flickr: Help: Galleries - Welcome to Flickr - Photo Sharing

    www.flickr.com/help/galleries

    Help / FAQ / Galleries. What is a gallery? For whatever you find interesting, fascinating, or mind-blowing on Flickr, galleries are a way to curate up to 18 public ...


  • Penis Enlargement Pill Reviews How To Increase Your Penis

    www.size-review.com

    Penis size pills for enlargement - which one works best? Find out here.


  • Story of Stuff, Full Version; How Things Work, About Stuff - YouTube

    www.youtube.com/watch?v=gLBE5QAYXp8

    Friend us @ https://www.facebook.com/psychetruthv... http://www.storyofstuff.com/ Story of Stuff, Full Version; How Things Work, About Stuff From its ...

0 comments:

Post a Comment