Yellowstone has everything for the camera addict but the park presents some subjects rather difficult to capture satisfactorily.

In either color or black and white the geysers are best photographed with quartering or slightly back light. Use panchromatic film and a fairly strong yellow filter or even a light red filter.

Color shots of Old Faithful are best made very early in the morning or late in the afternoon. If you are lucky enough to catch a color shot of an eruption against a sunset sky you will have a prize.

Hot pools demand considerable exposure to reproduce the color in the depths of the pool. Do not waste time on hot pools if the day is cool and steam obscures the subject. On such days the geysers give their best photographic eruptions.

In shooting geysers use a fast speed. Expose for the white and let the rest of the picture fall into a low key.

In using an exposure meter in Yellowstone, be careful to see that bright areas in the foreground do not give a false reading.

Your questions regarding either still or moving picture photography in Yellowstone will be answered fully if you will address Manager, Photographic Department, Union Pacific RR, Union Pacific Bldg., 1416 Dodge Street, Omaha 2, Nebr.

HAYNES PICTURE SHOPS—Pictures, albums, guide books, postcards, camera supplies and printing and developing service may be had at Haynes Picture Shops located in the hotels and lodges and elsewhere in the Park.