i8o 



SCIENCE- G OSSIP. 



CONDUCTED BY B. FOULKES-WINKS, M.E.P.S. 



EXPOSURE TABLE FOR NOVEMBER. 



The figures in the following table are worked out for plates of 

 about 100 Hurter & Driffield. For plates of lower speed number 

 give more exposure in proportion. Thus plates of 50 H. & D. 

 would require just double the exposure. In the same way, 

 plates of a higher speed number will require proportionately 

 less exposure. 



Time, 11 a.m. to 1 p.m. 



Between 9 and 11 a.m. and 1 and 3 p.m. double 



the required exposure. Between 8 and 9 a.m. and 



3 and \ p.m. multiply by 4. 



Subject P. 5-6 



F. 8 



F.ll 



F.16 







J- 



F.22 



F. %i 



1 



4 



F.45 



F.64 



Sea and Sky.. \ j4o 



J 



1 



Open Landscape ) i 



and Shipping , f ^^ 



h 



i 



i 



\ 



1 



2 



4 



Landscape,witb \ 

 dark fore- 

















ground, Street' \ j-V 

 Scenes, and 1 



i 



1 



i 



1 



2 



4 



s 



Groups . . 1 J 

















Portraits in ' 1 „ 

 Rooms ■ ■ 1 i 



16 



32 



1 



2 



4 



- 



- 



Light Interiors 30 



1 



2 



4 



8 



16 



32 



60 



Dark Interiors j 2 



4 



S 



16 



32 



60 



120 



240 



The small figures represent seconds, large figures minutes. 

 The exposures are calculated for sunshine. If the weather is 

 cloudy, increase the exposure by half as much again ; if gloomy 

 double the exposure. 



Royal Photoc4raphic Society of Great 

 Britain. — The annual exhibition of this Society 

 was opened on September 20th and will remain so 

 until November 2nd. On the Saturday evening, 

 before the public were admitted, the Society's soiree 

 took place, the visitors being received by ]\Ir. 

 Tliomas R. Dallmeyer, F.R.A.S., the President. 

 A most enjoyable evening followed, and it is evident 

 tliat the Society's soiree each year becomes more 

 popular, and forms the occasion for members from 

 all parts of the country to reunite and gossip over 

 tlieir achievements in the past and their hopes 

 for the future. Judging from the attendance, few 

 of our old friends lost this opportunity of again 

 meeting. The exhibition is held in the New 

 Gallery, Regent Street, London. On entering, the 

 Fountain Court is devoted to professional exhibits, 

 there being stalls managed by manufacturers and 

 dealers, the first to attract attention is that of 

 Messrs. AVellington & Ward, of Elstree, Herts, the 

 chief features being enlargements in bromide 

 process on their various papers, such as smooth, 

 rough, and cream crayon-platino-matt surface. 

 Some very pleasing effects are attained by the hot 

 liypo and alum process. Most of the exhibits are 

 made from films manufactured by the firm. There 



is also an exhibit of their film negatives. The 

 stall of Messrs. J. H. Dallmeyer, Ltd., contains a 

 fine exhibit of their lenses and cameras, also of 

 work produced by means of that firm's apparatus. 

 Considering the excellent results to be obtained by 

 the Dallmeyer Stigmatic Lens and the possible 

 ad-iantages of the three foci principle, it has always 

 lieen a source of surprise to us that the Stigmatic 

 Lens is not in more general use. It is equal to any 

 of the German two or three foci lenses and much 

 less in price ; yet we meet with a far greater 

 namber of German lenses in everyday use. We 

 cannot imagine that the German lenses are more 

 frequently recommended by dealers, to the ex- 

 clusion of those of British manufacture. The next 

 stand to attract our attention is one brilliant in 

 colour, being that of the Sanger Shepherd Company, 

 of London. It is a fine show, with some very 

 pleasing effects by Mr. Sanger Shepherd's process 

 of colour photography by the aid of light filters, 

 described some little time ago in this magazine. 

 This stall forms one of the most interesting 

 corners of the whole exhibition. Messrs. Ross, 

 Limited, of New Bond Street, London, have a 

 most elaborate show, consisting, not only of articles 

 of their own manufactm'e. but also apparatus 

 made by Messrs. Newman & Guardia, Adams & 

 Co., and Kodak Co., all these being fitted with 

 lenses of Boss-Zeiss, Ross-Goerz, and Ross types 

 of lenses, making admirable combinations of 

 apparatus. Another Ross exhibit is their cele- 

 brated Twin-lens Camera, that is now fitted with 

 a focal plane shutter for high-speed work. Their 

 projection lanterns and arc lights for projection or 

 laboratory work, also the Ross new pattern prism 

 binoculars, form an important feature. Adjoining 

 we find the stall of Messrs. C. P. CJoerz, who 

 show cameras, lenses, shutters, binocular glasses, 

 and specimens of work achieved with the Goerz- 

 Auschutz apparatus. Messrs. Watson & Sons, of 

 High Holboru, London, exhibit a fine 12 in. x 10 in. 

 studio camera and stand, also examples of their 

 "Acme" and "Premier" field cameras, with the 

 new Holostigmatic lenses and the new Leitz Peri- 

 pjlan lenses and enlargers for Kodak pictures. 

 There are further special ^-plate enlargers, a newly 

 invented attachment for enlargers for the use of 

 magnesium ribbon, the Watson- Bichrom Lampi 

 apparatus for developing films, a quickly set tripod, 

 stereoscopic binocular camera, and examples of the 

 various kinds of hand cameras supplied by the 

 firm. Messrs. Burroughs. Wellcome & Co. have 

 an artistic display of the advantages of tabloid 

 manipulation. One of the most interesting exhibits 

 in the gallery is that of the Platinotype Company. 

 The stall is decorated with some beautiful examples 

 of this charming process. We then find the remain- 

 ing exhibit in the Fountain Court is that of the 

 Kodak Companj', where visitors are introduced to 

 all its latest productions. With regard to the general 

 exhibition we may say that it contains many 

 beautiful works of the art. It will be a revelation, 

 with regard to the possibilities of photography, to 

 those amateurs who have not seen one of these 

 shows. It is a pity, however, that the Committee 

 of Selection have admitted some of the exhibits. 

 There are examples of work, the result of freeh' 

 exposed and cleveloped plates of uninterest- 

 ing, and in .some cases positively ugly, subjects, 

 poorly printed and untastefuUy mounted, the 

 whole showing a slovenliness unworthy of even 

 careless amateurs. 



