Here is a comprehensive article on Hawkeye.
https://www.shutterbug.com/content/why-i-still-shoot-vintage-kodak-brownie-hawkeye-film-cameraI had one when I was 9-years old. I fell in love with it when I saw the complete setup- flas attachment, film, and flash lamps in a drugstore window. I save up money- rewards for doig household chores, donations from benevolent grandparents, etc. and purchased the outfit for 14.95. Besides getting a start in my photographic education, I got good practice in janitorial work like feeding the coal furnace in one cellar, emptying the ashes, taking out the garbage, vacuuming the stairs, and washing the floors. After all, I had to keep the cash flow up photofinishing was expensive. Whether the coal furnace was replaced by an oil burner, I had space for my first darkroom in the coal bin- it took me 6 months to clean it out of the dust!
I eventually purchased a "cloud filter" (Yellow K-2) and a close-up attachment.
The bakelite classic was designed for use with NEGATIVE films that had ENORMOUS latitude so exposure was all over the place but the automatic printing machines in the labs where the drugstores sent their photofinishing could turn out very decent glossy deckled edge "JUMBO prints for normal, thin or dens negatives. Verichrome film was probably around ASA 100 but because the photofinishing labs cou provide better prints from dense negatives than from thin ones, Kodad listed it with a safety factor and rated it at around 80.
The aperture was probably somewhere around f/12.5 possibly f'16 with kinda jibed the f/16 sunny day thing. I soon discover that I could get better prints on dull days or in the share with Super-X film which, as I recall, was a whopping ASA200- WOW! The focal length was (I'm guessing) around 75mm so it would yield reasonable focus and depth field at the prescribed distances.
It was a medium-form 2 1/4 square box camera (just like a Hasselblad
-) the 620 film was like the 120 sizes but with a different spool socket.
The flash older use 2 "C" batteries and accepted Press 5, Press 25, or Bantom 8 Flashlamps. I found I could stop some action with SF flas lamps that were filled with gas rather than zirconium mesh.
The camera had a time exposure settg so if I could find a way to support the camera (it did not have a tripod socket) I was able to make night shots of static subjects.
My fits color prints were made with Kodacolr film (ASA 32)- I shot the late after and everyone came out ORANGE.
The Hawkeye was an upgrade from the Baby Brownie Special (127) and the next step was Poney 135.
Another trick- whenever I sent a technical question to Kodak's Sales-Serve Division at State Street in Rochester NY, they sent me a FREE data book- I amassed quite a collection- at the store they were marked at $.75 Well, I figure out how to broach a complex enough question so that their writing a letter is too much work and a data book would more than suffice. I'm sure Kodad did not lose out on the deal- they pushed all the products in those books. Nonetheless, those books were very comprehensive and informative. No other company published that kind of literature on a continuous basis.