Showing posts with label large-format. Show all posts
Showing posts with label large-format. Show all posts

Wednesday, May 9, 2012

What are Medium Format and Large Format cameras?

Question

What are they and what are they used for? And how are they different from regular SLR or DLSR cameras?

Asked by Akram Mellice

Answer

"Format" refers to the size of the recording medium in a camera. I say recording medium because the term originated in the film era and has continued to the digital age.

There are no hard limits but medium format is typically anything larger than 35mm film up to 6cmx7cm film. Large format is typically everything from 4"x5" up.

In addition to the size of the film or sensor there are a number of features typical of medium and large format cameras:

Medium format

  • Single lens reflex design with pentaprism or waist level 'finders (which look directly onto the focus screen from above and show a flipped image).
  • Highly modular design. In additional to interchangeable lenses, medium format cameras usually have interchangeable backs (with film/sensor), and sometimes interchangeable grips, viewfinders.
  • Focal plane or leaf shutter.
  • Can be manual or fully automatic with autofocus and metering.
  • Digital backs available up to about 645 size (53x36mm). Digital backs are just starting to become affordable.
  • Were common when 35mm cameras were more primative.
  • Used by landscape, fashion and portrait photographers.

Large format

  • Lenses mounted on lensboards (instead of traditional locking lens mount).
  • Leaf shutter mounted inside lens.
  • Bellows design with no reflex mirror.
  • Allows movement and tilt of lens.
  • Relatively difficult handling, usually requires tripod and careful setup.
  • Fully manual.
  • Digital backs are available but only scanning backs cover the full format, meaning scenes have to be static or will suffer from shearing. Prices very high.
  • Favoured by landscape / architectural photographers.
  • Offers highest possible level of detail in images.
Answered by Matt Grum

Wednesday, November 9, 2011

What is a banquet photo?

Question

I recently read a New York Times article about Banquet Photos and am wondering about them. I am not sure what makes a photo one. What are the requirements?

Answer

Banquet Photos

A banquet photo was popular in the late 19th century till the 1960s, and is essentially a very large format group portrait. They are named banquet camera because they were to actually take pictures in large banquet halls.

Requirements

Typical banquet photos are made with a 12x20 view camera such as the Kodak Banquet Camera. Extra wide angles are used to help capture the entire scene in a single shot. Many of these cameras also rotated on a stand while exposing the film in a pass from one edge to the other. Formats of banquet photos may include 5x12, 7x17, 8x20, and 4x10.

Details

The biggest advantage to the banquet camera is the sheer size of the negative. The contact print is so large that the detail, sharpness, and ultimate quality of images from these banquet cameras is the true reason that they enjoy high regard.

Example video of a Banquet Camera: http://youtu.be/pdJ7yPqNWyw?t=2m18s

Sunday, October 9, 2011

Is a “Zone” Large Format Camera with gold plating legit?

Question

Has anyone heard of the brand "Zone", who makes large format cameras? I've been looking into buying a 4x5 large-format camera, and have been digging through eBay items. I came across this one:

NEW ~ Zone VI 4x5 Large Format Field Camera RARE MINT

It looks nice...however I am curious about the "Gold Plated Hardware" comment. Seems a little sketchy for a $1200 camera...a Linhof costs some five times as much, and it looks a lot less pretty. Is this thing legit? Is "Zone" a viable brand, or should I stick with the well-known brands like Linhof, Wista, Tachihara, etc.?

Answer

The brand is actually "Zone VI" and yes, it's a real, legitimate LF camera. Here's a blurb on that camera from largeformatphotography.info (which has a lot of good info on various large format stuff).

No idea on the gold plating, through.

Friday, July 29, 2011

What is the best technology for large, permanent digital printing?

Question

Few questions:

  1. What is the best printer/plotter for printing large format images (best means best visual quality)
  2. What material and inkjet is the most permanent?

I'm thinking of printing images and I want to get the best posibble quality. Image dimensions would be from 0.5m to 2m (or even more).

How about this printer: http://www.usa.canon.com/cusa/consumer/products/printers_multifunction/professional_large_format_inkjet_printers/imageprograf_ipf8300

...or similar ones? Do such printers provide the best print that is available on market?

Thanks,
Ile

Answer

The Canon iPF 8300 is one of the more advanced large-format, commercial printers available on the market today. It is indeed designed to produce the highest quality large format prints possible. The key thing about the 8300 is that it uses Lucia EX ink, which is a very new pigment ink formulation specifically designed to produce a wide gamut on print. Similar to Epson's Ultrachrome HDR ink, the solid color gamut reproducible by Lucia EX supports over 90% of the Pantone Solid Color matching system on supported paper types. The Epson 7900 and 9900 are Epson's counterparts, and offer up to 98% Pantone on a specific paper type and at maximum DPI.

Ink is the primary factor that affects print output, quality, and gamut. If you intend to create prints that most accurately reproduce color and render fine tonal gradients smoothly, I highly recommend a Canon printer that supports Lucia EX ink, or an Epson printer that supports Ultrachrome HDR ink. For the widest gamut possible on a variety of unique paper types, such as metallic, you might want to look at the Epson Stylus Pro WT7900. This printer uses a new white ink, part of the Ultrachrome HDR + White ink set, which allows more control over highlight tones and possibly even white point. When it comes to HP printers, they are currently not as competitive in the area of ink as Canon and Epson are. Their Vivera pigment ink seems to date back to 2006, which is pretty old by current standards. Canon Lucia EX was released in March 2010, and Epson Ultrachrome HDR was released late 2009, so these brands have a considerable edge over the competition when it comes to accurate color reproduction.

As for which paper type is best...thats a much more subjective area. Both Canon and Epson wide-gamut, large format printers only support their maximum gamuts on a small range of their own brand of papers. A wide gamut is still supported for other papers, including off-brand papers, however they can't guarantee 90% Pantone Solid Color coverage on every paper type (at least, not yet.)

There are several key factors in choosing a paper for your prints. Not every type of photography looks the same on any type of paper, so you need to choose paper types that compliment the type of photography you are printing. Some types look best on glossy or luster papers, some require bright white or pure white, other types look best on natural papers with warmer white points. Some experimentation will be necessary to identify which paper types, finishes, and white points best compliment the type of photography you are printing. In this area, Epson offers more brand name papers than others, however their papers are not necessarily the best, either. Canon offers a fairly broad range of paper, however much of it is manufactured by Hahnemuhle. There are also plenty of third party papers from manufacturers who have been in the business for hundreds of years, including Hahnemuhle (and Harman), Moab, Museo, Ilford, Breathing Color, etc.

Certain factors of a paper affect the reproducible gmaut when printed on. One of the primary factors that affects gamut is the white point and white brightness of the paper. A "purer" white, one that falls around 5500K-6500K, will expand the reproducible gamut as well as maximum tonal range, as it is a purer, more "white" white. Cooler whites (that show up almost blue) or warmer whites (that show up with more orange or red) will reduce or shift the reproducible gamut, as the paper itself will affect color reproduction. Black and white prints tend to look best with a pure white paper, unless you want the artistic or warming effect of a "natural" white paper (which is what most matte fine art papers provide). The brighter the paper, the greater the tonal range is likely to be. Some papers include optical brighteners, which use UV sensitive material that absorbs UV light and emits light in visible wavelengths. Gloss, semigloss, luster papers often have optical brighteners, which can help improve gamut and tonal range...however since they have UV reactive components, they often require a specific kind of lighting to reproduce color correctly.

Another aspect of print quality is paper texture. Not all paper is equal in this regard, and there are a variety of materials, including wood, cotton, bamboo, sugar cane fibers, used to create the printable surface of a paper. Certain fiber types bring out the most in certain types of photography, and certain textures can help add a bit of artistic flare.

In my personal experience, I've found that gloss or luster papers are best paired with portraits, pure white papers are ideal for black and white prints, and photo rag (cotton) papers with a natural white produce superb landscape prints. I personally try to avoid papers with optical brighteners, however such papers may serve your specific type of photography well, so I would experiment.

Thursday, July 28, 2011

Should I consider a used Tachihara 4x5" Large-Format camera or an equivalent new alternative?

Question

As my primary photographic interests lie in landscape photography, I've been seriously looking into buying a large-format camera. In my research, I encountered the Tachihara 4x5", which is a beautifully crafted cherry-wood and brass frame camera. Sadly, as I've started looking at prices, it appears it was discontinued...this year! :( sob

I am curious about two things. First, is the Tachihara something worth buying used, and if so, outside of ebay, where might I find a used one? Second, are there any equivalent alternatives to the Tachihara that are still being manufactured? I really loved the cherry wood look of this particular camera, and all of the others I've looked at seemed to be black with simple chrome highlights. If there are comparable wood/brass alternatives to the Tachihara, I would be very interested.

Answer

You can still get the tachihara from mpex.com