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Top 100 least often collected cameras by CollectiBlend members:
| No. | Manufacturer | Model | Number of collectors |
| 1 | Leitz | Leica R3 "Oskar Barnack" Gold | 1 |
| 2 | unknown companies | Sterling Miniature | 1 |
| 3 | Showa Kogaku | Leotax K3 | 1 |
| 4 | Beck | Folding Frena (No. 6 - 8) | 1 |
| 5 | Certex S.A. | Werlisa MN | 1 |
| 6 | Kigawa | Gotex | 1 |
| 7 | Canon | PowerShot SD550 (Digital IXUS 750 / IXY Digital 700) | 1 |
| 8 | Nikon | Coolpix L18 | 1 |
| 9 | Foitzik | Unca (6x6) | 1 |
| 10 | Soho | Soho Reflex Tropical | 1 |
| 11 | Dacora Dangelmaier | Dignette 300 LK | 1 |
| 12 | Konishiroku (Konica) | Revio II | 1 |
| 13 | Canon | PowerShot A3100 IS | 1 |
| 14 | Kodak Eastman | VR 35 K60 | 1 |
| 15 | Newman & Guardia | Twin Lens Pattern | 1 |
| 16 | OPL (Foca) | Foca * | 1 |
| 17 | Monarch | Remington Flex-Master | 1 |
| 18 | Mendel Georges | Field Camera | 1 |
| 19 | Pentax | K10D | 1 |
| 20 | AGFA | Le Box Black/White | 1 |
| 21 | Bolex-Paillard | 480 Macrozoom | 1 |
| 22 | Vredeborch | Optomax Syncrona | 1 |
| 23 | Ernemann | Bob 0 (folding) | 1 |
| 24 | Kuribayashi (Petri) | Petri PX 5 | 1 |
| 25 | Panasonic | Lumix DMC-G1 | 1 |
| 26 | Rollei | Wide-Angle Rolleiflex | 1 |
| 27 | unknown companies | Mexico | 1 |
| 28 | Bell & Howell | Power Zoom 1000 | 1 |
| 29 | Fuji Optical | Fuji Discovery 60 | 1 |
| 30 | Asahi | Pentax K1000 Anniversary | 1 |
| 31 | Stereo-Corporation | Contura | 1 |
| 32 | Fuji Optical | Fujifilm GA 645 W | 1 |
| 33 | Ricoh | Ricoh 35 L | 1 |
| 34 | Sears Roebuck | 126 Reflex TLS | 1 |
| 35 | Kodak Eastman | Rainbow Hawk-Eye No.2 | 1 |
| 36 | Fuji Optical | FinePix S9800 | 1 |
| 37 | Argus | Solid State Electronic | 1 |
| 38 | Bradac | Companion | 1 |
| 39 | Zeiss Ikon VEB | Prakti II | 1 |
| 40 | Chinon | Chinon 35 | 1 |
| 41 | Arca Swiss | Arca Swiss Reflex | 1 |
| 42 | Kodak Eastman | Kodak HQ (Maximum Versatility) | 1 |
| 43 | Leitz | Leica IIIc Luftwaffen-Eigentum chrome | 1 |
| 44 | Sony | Cyber-shot DSC-S40 | 1 |
| 45 | Demaria-Lapierre | LT Aerial Camera | 1 |
| 46 | Minolta | Freedom Zoom 70c | 1 |
| 47 | Sakar | Digital (27286) | 1 |
| 48 | Sands & Hunter | Imperial | 1 |
| 49 | Canon | Canonet S | 1 |
| 50 | Nagel Dr. August | Vollenda No.52 (4x6.5) | 1 |
| 51 | Kodak Eastman | Folding Brownie No.3 Model B | 1 |
| 52 | Foto-Quelle | Revue 350 Automatic | 1 |
| 53 | Rouch | Eureka | 1 |
| 54 | ICA | Cupido (6x9, plate) | 1 |
| 55 | Olympus | AF-10 XB | 1 |
| 56 | Polaroid | Supercolors LM | 1 |
| 57 | Fuji Optical | Nexia 250 IX Z MRC | 1 |
| 58 | Mackenstein | Detective Camera | 1 |
| 59 | Bencini | Comet (1962) | 1 |
| 60 | Yashica | Minitec Super (Finesse Micro AF) | 1 |
| 61 | Aires Cameras | Airesflex IV | 1 |
| 62 | Ernemann | Minor (Tropical) | 1 |
| 63 | Krasnogorsk | Prinzflex 500 | 1 |
| 64 | Light Ind Prod | Seagull DF | 1 |
| 65 | Nikon | D850 | 1 |
| 66 | Siva | Siva | 1 |
| 67 | Beier | Lotte II | 1 |
| 68 | Ricoh | Ricoh AF-303 | 1 |
| 69 | Kodak Eastman | Folding Pocket No.3 Mod C3 | 1 |
| 70 | Minolta | Minolta 16 (blue) | 1 |
| 71 | Kodak Eastman | EasyShare M863 | 1 |
| 72 | Konishiroku (Konica) | Panorama Zoom | 1 |
| 73 | Balda | Narol | 1 |
| 74 | Polaroid | Polaroid 3200 | 1 |
| 75 | DeJur Amsco | Dejur Reflex Model DR-20 | 1 |
| 76 | Krügener | Delta Klapp (Folding, 1900) | 1 |
| 77 | Kodak Eastman | Kodak Junior 616 | 1 |
| 78 | Canon | PowerShot G9 | 1 |
| 79 | Bolex-Paillard | H16 Leader | 1 |
| 80 | Fodor | Fodor Record | 1 |
| 81 | National | C-R1 | 1 |
| 82 | Zeiss Ikon VEB | Penti I (silver) | 1 |
| 83 | FED | FED C (S) | 1 |
| 84 | Hanimex | 35 C 1 | 1 |
| 85 | Kodak Eastman | DC215 | 1 |
| 86 | Photo Porst | Porst Reflex C-TL II | 1 |
| 87 | Toa (Toakoki Seisakusho) | Gelto Semi (1939) | 1 |
| 88 | Zeiss Ikon | Ikonta 521/16 (Ikonta B, Opton) | 1 |
| 89 | Taiyodo Koki | Beauty 35 I | 1 |
| 90 | Bencini | Rolet | 1 |
| 91 | Agfa Berlin | Movexoom S2 | 1 |
| 92 | Leitz | Leica X2 | 1 |
| 93 | Rodenstock | Rodar II | 1 |
| 94 | ICA | Minimum Palmos (9x12, 456) | 1 |
| 95 | Chinon | Chinon CX | 1 |
| 96 | Hüttig | Merkur | 1 |
| 97 | Photo Porst | Carena Zoomex Pocket | 1 |
| 98 | Casio | Exilim EX-Z60 | 1 |
| 99 | Pignons | Alpa Si 2000 | 1 |
| 100 | Yamato | Pal M4 | 1 |