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⏺ Functions of filters and an explanation of flash

Please post a topic about the functions of filters and their effects with color films.
We note that the (85B) filter is orange and is used with (3200 Tungsten) film, and its function is to adjust the color temperature of the aforementioned film. What would happen if we used the same filter with (daylight) film?
I would also like to provide a full explanation of the Sunpak Auto-134 flash, especially the places referred to in the attached booklet.

The friend Talal Othman Bahousi
Riyadh, Saudi Arabia

Slide films are of two types (Tungsten) and (Daylight).
The first is intended for indoor use only, without flash, and under 3200K lighting, and here it is not necessary to use the filter.
The second is intended for external use only or internal with a flash.
As for the first film, it can be filmed under normal lighting (photolump) 3400K, and here it is assumed that a filter (A-81) should be adopted.

Outside, that is under daylight, it is assumed, as I mentioned, that we use it, but if we want to use it in a (B-85) filter, to adjust the color temperature, because the film was originally intended for indoor photography.

And if we use (Daylight) film outside with a (B-85) filter, this means that it will affect the color temperature, and the pictures will tend to be orange. Because this film is intended to be shot outside without a filter.
And if it is used indoors under (Tungsten 3200 K) lighting - (A-80) and with normal lighting - (Photo lamp 3400), a filter - (B - 80) must be used.
As for the flash that you own, it is considered one of the flashes distinguished by its high technology. The sites of use referred to are:
1- The number (1) referred to is the same as detailed in number (16).
2- A lens, an eye, to monitor the strength of light required and sufficient for photography, and it works electronically to adjust the optical charge when using it automatically.
3 - A switch for the four flash strength locations, which determines the strength of the light charge so that the photographer can use the appropriate location and aperture of the lens.
4- When using key number 4. Which determines one of the four functions of the flash, you have to read the lens aperture and shutter speed denoted on the number 9) and that the color placed in the number (4) must be identical to the number (9).
5- The signal lamp flashes when the flash is used in the (Auto) position.
6- The key to the destination of using the flash towards the (4) position, which means automatic use, and the M position, which means manual use.
7- Your follow-up to explanation No. (4 and (9) is the same as the goal of No. (5).
8 - A set of filters to be used on top of the flash bottle to give a specific color you want to your photos, such as the red, yellow or blue filter, in addition to a special filter for outdoor photography, if you use a film intended for indoor photography, which is (B-85). Wide-angle so that the lighting covers all angles of capture. That is, the distribution of light over a wide area of ​​the subject.

9- A cover placed over the flash bottle to limit the flash rays and send them to long distances when using long lenses.
As for the flash usage schedule, it is linked to number (4), i.e. flash missions. It is four functions when using automatic only, i.e. key No. (16) is placed on (8) position.

- The red signal allows you to use the flash between 5 cm and 2.70 m.
The yellow signal is between 5 cm and 5 meters.
The green signal is between 5 and 7.60 meters.
- The blue signal - between 5 cm and 11.60 meters.

Thus, it turns out that these signals show the strength of the light charge for each of them, so that the blue signal remains with the strongest and largest charge. As for our advice to you, it is to go beyond this information and to adopt the green light for all types of photography.

⏺ Camera and flash with the address of the photography club at the American University

I have an electronic flash (Unomat 320 TCD) with a camera (1 - Canon - AE). The flash is compatible with several cameras, including the Canon I have.
The problem is that when the flash is ready for shooting, the indicator of insufficient illumination flashes, while when using the flash of the Canon Speedlite (155), the indicator stops flashing. Is there any risk to the clarity of the image?
What is the address of the photography club at the university?
American, and do they accept joining members by correspondence.

Muhammad Nabil Al-Dahna
Damascus - P.O. Box 12329
Syrian Arab Republic

It is clear from your message that you did not suffer from actual problems, but if you do have a problem, you must send us the results that you have reached and that you are complaining about.

According to the table, Canon cameras are compatible with the use of this flash, hence we find that there is no problem.
And from the review of the flash functions, it became clear to us that the one that flashes is the electronic signal site, so we hope to make sure of that, and in any case you have to experiment.

As for the photography club at the American University, it is limited to university students only, and therefore they do not accept members by correspondence.
The address is the American University Photography Club
Beirut - p. B 0236/11 ⏹

⏺ binoculars in front of the lens and preserving the negatives:

1- If we put binoculars in front of the camera lens, can we take pictures that we see through the binoculars?
2- How can we preserve the negatives of the films for a long time, without them being damaged?

Zakaria Nasser Homs - Syria

1- Unless the binoculars are intended to be mounted on a camera lens or a camera in general, photographing through it remains impossible, and the reason is that there are special equipment for these uses.

2- The best way to save the negatives is to put them inside the nylon bags designated for the films. In this way, they will last for a long time, away from dust. You are also supposed to put your films away from places of moisture⏹