middle

Hello all,

I have an LPL C7700MX pro enlarger that was bought in India in early 2000 (LPL C7700MX Dichroic Colour 6x7 Enlarger). It came with the appropriate Power supply designed for 220V (220V Power Supply for LPL 6700 and 7700 Enlargers). Now I am trying to put it to use in the US and to my surprise it turned on with the regular 120V wall outlet.

My question is: will the light intensity be any different with this arrangement, and should I need to purchase the 120V power supply for the same enlarger?

thank you for your suggestions!

s

<p>Sorry for the wrong URL, here is the correct one:</p>

<p>http://www.panoramio.com/photo/88305103</p>

<p>Appreciate your response,<br>

thank you!</p>

<p><img src="http://www.largeformatphotography.info/forum/attachment.php?attachmentid=92615&d=1365017223" alt="" /></p>

<p>This is Kodak Ektar, processes in professional lab, claiming to use Refrema Dip-Dunk process. Any ideas about what could have caused this color cast around the edges and also on the right side of the image? I am suspecting developing error, but need second, third, forth opinions. Thank you for your time!<br>

<p>Thank you all for the responses. A follow up question is what happens with the warranty when you do find the scanner at a dealer - but I am planning to ask that to the dealer.<br>

m</p>

<p>Hello All,<br>

Any idea why Nikon Coolscan 9000 scanners are backordered on all major vendor websites for quite some time now? Anyone bought it recently (last 3 month), if so where?<br>

I am getting a little confused about Nikon's plans for this product.<br>

Thank you,<br>

M</p>

<p>In my experience developers differ not just from each other, but also dilutions of same developer differ significantly in their results. for example, the kodak HC110 works much better when diluted to 1:64 as opposed to the suggest dilution on the bottle.</p>

<p>I would advice, you can play with a few developers, based on what's available, I am sure in each you will find ways that they behave their best behavior. </p>

<p>I second Tim in shooting several same bracketed exposures, and developing them in different developers, or developing them in different dilutions of the same developer, to see how the latitude of the film changes.</p>

<p>cheers,<br>

middle</p>

Thanks a bunch guys!

m

Hi all,

Following are links to pictures that I believe are shot on the large format.

http://bp0.blogger.com/_Ei4KZjWwOr0/Rc-WHMQvVXI/AAAAAAAAAho/hqLcPje1J8c/s1600-h/6.jpeg

http://bp2.blogger.com/_Ei4KZjWwOr0/Rc-VwsQvVSI/AAAAAAAAAhA/d43SwnYSAjU/s1600-h/1.jpeg

http://zonezero.com/exposiciones/fotografos/perrin/images/01.html

http://zonezero.com/exposiciones/fotografos/perrin/images/02.html

Can anyone explain how one gets those edges in the print? Is it a film specific

technique?

Thank you,

m

Image credits:

Patrick Demarchelier,

Gilles Perrin

check out: http://www.largeformatphotography.info/

It may be more than you need, but not a lot on the digital side.

best,

m

Thank you guys,

m

I messed up my 80mm: the screw which matches at the mount on the camera is

stuck, and the small part beside it has fallen inside. Has anyone had this

accident? do you think it is repairable? If so any reliable repair shops you

could suggest?

Thank you,

m

I am interested in reproducing the look of Weegee's photographs. Does anyone

know about the kind of films and developers he used?

I suppose, the 101 class has to be take all by your self. So as to

set your own identity right from beginning!

<p>

But you can always look in a book, most books don't hurt.

<p>

Middle

forgot "T"

<p>

:)

My little addition

<p>

Dust is not jus in the air. But also in water. Try using packed

mineral water for the final wash with wetting agent.

<p>

I do so :)

<p>

Middle

try pulling TMX 100 to 25 asa

With D76 / 1:1/ @ 18degrees

You won't see any grain at 16X20

<p>

Middle

Hi there

<p>

One of the answers here led me to a link: http://christianharkness.tripod.com/digitalnegative.html

<p>

I couldn't figure out what exactly is this concept. Can somebody elaborate on digital negs?

<p>

Actually I not in mood of buying the book just like that ;)

<p>

Thanks

<p>

Middle

just one addition,

<p>

To make a dusty darkroom better, try spraying water in air all over.

Then wait to let it settle.

<p>

It works!

<p>

Thanks

Middle

Ed tell me more on how to remove it from the fixer?

<p>

will you? or it's a trade secreat?

<p>

:)

middle

::::::::: LOOK WHAT THEY ARE SAYING :::::::::

<p>

-------------------------------------------------------------

<p>

Digital Sensor Is Said to Match Quality of Film

by John Markoff for the New York Times

<p>

<p>

SAN FRANCISCO, Feb. 10 � If Carver Mead is right, photographic film is an endangered species.

<p>

Dr. Mead, who is 67, was a pioneer of the modern computer chip industry in the 1970's. But he has never stopped inventing. And on Monday his Silicon Valley start-up, Foveon, plans to begin shipping a new type of digital image sensor that outside experts agree is the first to match or surpass the photographic capabilities of 35-millimeter film.

<p>

The Associated Press

Carver Mead, founder of Foveon.

The company's sensor chip is being used in a single-lens reflex camera that Sigma, a Japanese camera and lens maker, plans to begin selling for about $3,000 later this month. A second generation of Foveon's sensors is scheduled for shipping this fall and, if other camera makers embrace it, could become available early next year in more popular brands of digital cameras selling for less than $1,000.

<p>

The first new sensor the company is now shipping is made by National Semiconductor (news/quote) and will have approximately 3.53 million pixels. Such a resolution would put the device in the middle of the market for digital image sensor chips used in digital still and video cameras. Because of the new technology's color-capturing technique, however, its designers say it is actually comparable to existing sensors with 7 million pixels that are currently available only in cameras costing $6,000 or more.

<p>

"It will completely transform the industry," George Gilder, an economist and an information industry analyst, said of Foveon's sensor.

<p>

Executives at Eastman Kodak (news/quote), one of the largest makers of both consumer and professional digital cameras, say they have talked with Foveon about possibly using the company's sensors in at least one part of the Kodak product line.

<p>

"We've been very aware of what they're doing and monitoring their progress," said Madhav Mehra, manager of Kodak's professional digital-capture group. "Our contention is that if this technology gets proven out, it's very significant."

<p>

If Foveon is to realize its goal of becoming a dominant player in the market for digital image sensors, the company will need to attract manufacturers like Kodak. The sensor market is currently dominated by consumer electronics giants like Sony (news/quote) and the big European chip maker ST Microelectronics, which have invested billions of dollars in their own technologies.

<p>

"I have no doubts this is a great technology," said Chris Chute, a senior analyst at the International Data Corporation, a research house. "The rub is that the market has heavily entrenched competitors. The No. 1 digital camera manufacturer in the world is Sony. They're the 5,000- pound gorilla compared with little Foveon."

<p>

Still, photography experts say Foveon's approach to sensors could be the most significant breakthrough in digital photography since the original black-and-white sensor was invented at Bell Laboratories in 1969. Foveon's sensor significantly simplifies the process of capturing a digital image and avoids most of the color aberrations that have plagued digital photography.

<p>

The current crop of digital sensors capture light using a mosaic of red, green and blue filters that limit color information to one color per picture element, or pixel, on the sensor surface. The technique requires the chip to perform as many as 100 calculations per pixel to approximate the color, which can cause inaccuracies. The limitations also sacrifice picture resolution and limit the sensor's ability to operate in low light.

<p>

"Most digital cameras don't do a good job of giving you the colors you actually see," Dr. Mead said.

<p>

Foveon's sensor, rather than break images into separate colors and distribute them among separate pixels, captures color by measuring how deeply photons of light penetrate the surface of the imaging material. Not only is there higher resolution from a given number of pixels, but there is less loss of light and less need for the correcting calculations that can distort the image.

<p>

"There is no longer any need to use film," Dr. Mead said.

<p>

With more than a billion film cameras in the world, conventional photography is unlikely to disappear soon, in the view of Don Franz, publisher of the trade publication Photo Imaging News. But Mr. Franz notes that the digital camera market is growing fast, with about 8 million digital cameras sold in the United States last year and an additional 10 million internationally, for a global market valued at about $8.6 billion

<p>

Alexis Gerard, publisher of The Future Image Report, a newsletter that tracks the digital photography market, said the industry was at "a crossover point" in terms of digital technology and Foveon's technology could help speed the transition. "Having a sensor that measures all three colors at every element at full exposure has been the engineering holy grail," Ms. Gerard said.

<p>

Industry experts say that one of the most intriguing aspects of the Foveon sensors is that they might allow for a hybrid digital camera that performs equally well for both video and still photography. Currently, the markets for still and video digital cameras are separate because most sensors cannot easily adjust from high resolution for still pictures to lower resolution for moving images.

<p>

Foveon's new sensor technology, which the company calls X3, is a departure from the two types of image sensors that have proliferated in a wide range of consumer products: CMOS, which is pronounced SEE- moss and stands for complementary metal-oxide semiconductor, and a more complex variety called C.C.D., for charged coupled device.

<p>

Two years ago, Foveon was concentrating on expensive, professional cameras based on CMOS sensors but abandoned them after coming up with the X3 approach.

<p>

Foveon is being deliberately vague about its manufacturing methods but says its design greatly reduces the cost of making sensors and could create an opening for American chip makers in the digital-sensing field. National Semiconductor, one of Silicon Valley's old.

----------------------------------------------------------------------

<p>

<p>

I couldn't understand on what are they going to print this image as good as what you get on a fiber based BW paper.

<p>

Can somebody tell me?

<p>

you can look at this article at

<p>

http://www.zonezero.com/magazine/news/sensor.html

<p>