We hear a good deal about portrait photographers of unusual ability, the commercial photographer who photographs everything on the earth, and we have seen quite a bit of aerial photography since the war, but we hear very little of the men who photograph the heavens.

They are hid away in the observatories, often in out of the way places, and are working from dark until dawn and often in the daytime, mapping the stars and planets and photographing the sun.

We hardly dare speak of their work for we know so little about it, and few of their negatives would mean anything to us if we were to see them, yet we know they have been making these important records for years and will continue to make them for years to come.In fact, the great telescopes all over the world are today used almost exclusively for photography. Time is too valuable to waste in merely looking, when the photographic negative supplies a record that can be studied at leisure. So the astronomer fixes his telescope on a star or a group of stars, adjusts the mechanism that compensates for the movement of the earth, keeping the great instrument fixed, and in this way makes exposures of hours duration that show no movement.

While the astronomer himself might be called a photographer, every observatory has a photographer who is a specialist and whose business it is to know more of photography than of astronomy. And to one of these photographers, Mr. Carl A. Bergmann, we are indebted for the excellent pictures of Lick Observatory and its surroundings.

The Photographer One Seldom Hears About StudioLightMagazine1923 150

SUNSET ON AN OCEAN OF CLOUDS, WRATTEN PANCHROMATIC PLATE

By Carl A. Bergmann

Lick Observatory, Mt. Hamilton

This is the great Observatory of the University of California on Mount Hamilton near San Jose, California. Mr. Bergmann says: "As the Observatory is at an altitude of 4209 feet above sea-level, snow falls occasionally but, nevertheless, wild flowers may be found growing at any time during the winter months. The Manzanita blossoms were found in January.

"We use Eastman Kodak Co.'s goods exclusively at this Observatory, Plates, Papers and Chemicals, and all of the pictures were made on Wratten Panchromatic Plates through a K-3 filter.

"One of the pictures was made just as the sun was setting into an 'Ocean of Clouds,' a scene not easily to be forgotten by those who have witnessed such a beautiful sight. Under the 'Sea of Clouds' lies the Santa Clara Valley and the City of San Jose which may be faintly seen to the right and left of the Observatory." See the picture on page 19.

Made on Panchromatic plates which are sensitive to all colors, and through the K-3 filter which gives the correct rendering as the eye sees the subjects, these pictures, especially the sunset, are correct reproductions and do not exaggerate. With such a view as must be had from this spot there must be considerable satisfaction in working on a mountain top.

PHOTOGRAPHERS' ASSOCIATION OF AMERICA 41st ANNUAL CONVENTION THE PLACE - WASHINGTON, D. C. THE TIME - JULY 16 - 21, 1923

Mark these dates on your calendar and plan to attend the big show this year. If you have never visited Washington you have a treat in store for you. It is a wonderful city and you will have an opportunity to see its sights. If you are familiar with the city you will have more time to devote to the convention and its many attractions and we are told this is to be the biggest and best Convention yet.

The largest hall in Washington, having over three-quarters of an acre of unobstructed floor space,will be taxed to its utmost to accommodate exhibitors who will have the newest things in photographic materials and apparatus to show and demonstrate to you. The demonstrators for this year's Convention are all specialists in some particular branch of portrait work and you will get ideas from their demonstrations that will be of real value to you when you return to your studio. One must have these new ideas and the incentive that contact with other successful photographers brings if one is to be really progressive. And it is ambition and progressiveness that bring success.

The Photographer One Seldom Hears About StudioLightMagazine1923 152

Manzanita Blossoms, Wratten Panchromatic Plate

By Carl A. Bergmann

Lick Observatory, Mt. Hamilton

The portrait exhibit is always a real educational feature of these meetings and as one learns most by comparison, every member is urged to prepare an exhibit for this display of portraiture.

There will also be a special program and display by the Commercial Section and this will be of interest to the entire profession. This section is made up of very live business photographers who are thoroughly imbued with ideas of helpful cooperation. It is a pleasure to meet them, and their program and exhibit will be decidedly worthwhile.

The program in detail will be announced shortly in a special Association Bulletin, or information will be furnished by the Secretary, S. R. Campbell, Jr., 722 Bond Building, Washington, D. C. Write him for an Identification Certificate which will entitle you to purchase round trip transportation from your regular ticket agent at the special rate of one and one-half times the regular one way fare, with return trip good until July 27.