I have not found evidence of Tomioka making filters, although they could well have, so that remains an unknown.However, as Yashica grew with its 35 mm business in the 1960s and 1970s and considering its fame for introducing electronics into these cameras, it seems highly probable that more accessories were produced in-house. Although there is little hard evidence, my impression of what turns up on auction sites, what I have found generally on the net and what Yashica has mentioned in its documentation is that there were have been lens hoods.Also note that Yashica was focused on the mass market and volume.There is no evidence of specialised accessories for the much more limited enthusiast market such as panorama heads and some of the other items offered by both Franke & Heidecke and Minolta.
The first Yashicaflex A series manuals (end 1954) displayed lens hoods (only A-I/A-II), flashguns and self-timers, but so far, all the evidence suggests that they were generic rather than Yashima/Yashica branded items.(Back to Contents) Bay 1 (also known as B30 or 30 mm bayonet) is the smallest size Franke & Heidecke bayonet design for fitting auxiliary items to Rolleicord and Rolleiflex lens mounts (there are also Rollei bayonets size 2 and 3 for their larger glassware but these are not relevant to Yashicas).The Rollei bayonet mounts use an internal bayonet for filters and auxiliary lenses and an external bayonet for lens hoods etc. Apparently not, or at least not as far as tolerances are concerned.The prime purpose of this website is to document the development of Yashica's TLRs and , including from other manufacturers, from both historical and collectors' perspectives.That also means matching the accessory's style to the age of the camera for those that worry about such things.