Cam 自動岩械，也就是一般俗稱的Friends，應該算是岩械選擇上比較複雜的一部分，這裡選擇了幾組常見的牌子和型號來進行比較，這裡主要是比較一些客觀數據，另外還有一些主觀數據，例如製作品質、品牌喜好，這裡不多做比較。
主要要評價的項目有幾項
主要要評價的項目有幾項
- 強度 (Strength)
- 操作範圍下限 (Range Min)
- 操作範圍上限 (Range Max)
- 重量 (Weight)
- 單位操作範圍的重量 （unit weight)
Blackdiamond (BD) - Camalot X4 (X4)
DMM - New Dragon
Wildcountry - New Friends
Metolious - Ultarlight Master Cam
DMM - New Dragon
Wildcountry - New Friends
Metolious - Ultarlight Master Cam
| Brand | size | strength(kN) | Range Min | Range Max | Range (mm) | weight (g) | unit weight (g/mm) |
| BD - C4 | 3 | 14 | 50.7 | 87.9 | 37.2 | 201 | 5.4 |
| BD - C4 | 2 | 14 | 37.2 | 64.9 | 27.7 | 155 | 5.6 |
| BD - C4 | 4 | 14 | 66.0 | 114.7 | 48.7 | 289 | 5.9 |
| BD - C4 | 1 | 14 | 30.2 | 52.1 | 21.9 | 136 | 6.2 |
| BD - C4 | 0.75 | 14 | 23.9 | 41.2 | 17.3 | 119 | 6.9 |
| BD - C4 | 0.5 | 12 | 19.6 | 33.5 | 13.9 | 99 | 7.1 |
| BD - C4 | 0.4 | 10 | 15.5 | 26.7 | 11.2 | 83 | 7.4 |
| BD - C4 | 0.3 | 8 | 13.8 | 23.4 | 9.6 | 75 | 7.8 |
| BD - UL C4 | 3 | 12 | 50.7 | 87.9 | 37.2 | 167 | 4.5 |
| BD - UL C4 | 2 | 12 | 37.2 | 64.9 | 27.7 | 126 | 4.5 |
| BD - UL C4 | 1 | 12 | 30.2 | 52.1 | 21.9 | 101 | 4.6 |
| BD - UL C4 | 4 | 12 | 66.0 | 114.7 | 48.7 | 225 | 4.6 |
| BD - UL C4 | 0.75 | 10 | 23.9 | 41.2 | 17.3 | 89 | 5.1 |
| BD - UL C4 | 0.5 | 10 | 19.6 | 33.5 | 13.9 | 74 | 5.3 |
| BD - UL C4 | 0.4 | 8 | 15.5 | 26.7 | 11.2 | 61 | 5.4 |
| BD - X4 | 0.75 | 9 | 24.0 | 41.2 | 17.2 | 112 | 6.5 |
| BD - X4 | 0.5 | 9 | 19.8 | 33.7 | 13.9 | 91 | 6.5 |
| BD - X4 | 0.4 | 9 | 15.5 | 26.6 | 11.1 | 82 | 7.4 |
| BD - X4 | 0.2 | 6 | 9.9 | 16.5 | 6.6 | 54 | 8.2 |
| BD - X4 | 0.3 | 8 | 12.4 | 21.2 | 8.8 | 75 | 8.5 |
| BD - X4 | 0.1 | 5 | 8.4 | 13.8 | 5.4 | 51 | 9.4 |
| DMM - Dragon | 4 | 14 | 38.0 | 64.0 | 26.0 | 154 | 5.9 |
| DMM - Dragon | 5 | 14 | 50.0 | 85.0 | 35.0 | 208 | 5.9 |
| DMM - Dragon | 3 | 14 | 29.0 | 50.0 | 21.0 | 128 | 6.1 |
| DMM - Dragon | 6 | 14 | 68.0 | 114.0 | 46.0 | 299 | 6.5 |
| DMM - Dragon | 2 | 14 | 24.0 | 41.0 | 17.0 | 117 | 6.9 |
| DMM - Dragon | 1 | 14 | 20.0 | 33.0 | 13.0 | 103 | 7.9 |
| DMM - Dragon | *00 | 10 | 13.0 | 21.0 | 8.0 | 75 | 9.4 |
| DMM - Dragon | 0 | 14 | 16.0 | 25.0 | 9.0 | 85 | 9.4 |
| Metolious- UL Master Cam | 8 | 10 | 48.5 | 71.5 | 23.0 | 129 | 5.6 |
| Metolious- UL Master Cam | 6 | 10 | 32.5 | 48.0 | 15.5 | 96 | 6.2 |
| Metolious- UL Master Cam | 7 | 10 | 40.0 | 57.5 | 17.5 | 112 | 6.4 |
| Metolious- UL Master Cam | 5 | 10 | 28.0 | 39.5 | 11.5 | 85 | 7.4 |
| Metolious- UL Master Cam | 4 | 10 | 23.5 | 33.5 | 10.0 | 75 | 7.5 |
| Metolious- UL Master Cam | 2 | 10 | 15.5 | 22.5 | 7.0 | 55 | 7.9 |
| Metolious- UL Master Cam | 3 | 10 | 18.5 | 26.5 | 8.0 | 65 | 8.1 |
| Metolious- UL Master Cam | 0 | 5 | 10.0 | 15.0 | 5.0 | 45 | 9.0 |
| Metolious- UL Master Cam | 1 | 8 | 12.5 | 18.0 | 5.5 | 52 | 9.5 |
| Metolious- UL Master Cam | *00 | 5 | 8.5 | 12.0 | 3.5 | 45 | 12.9 |
| WC-New Friends | 2 | 12 | 41.5 | 69.3 | 27.8 | 142 | 5.1 |
| WC-New Friends | 3 | 12 | 52.7 | 88 | 35.3 | 192 | 5.4 |
| WC-New Friends | 1 | 12 | 31.7 | 53.6 | 21.9 | 123 | 5.6 |
| WC-New Friends | 4 | 12 | 66.8 | 112.1 | 45.3 | 260 | 5.7 |
| WC-New Friends | 0.75 | 12 | 25.8 | 43 | 17.2 | 102 | 5.9 |
| WC-New Friends | 0.5 | 12 | 20.6 | 34.5 | 13.9 | 88 | 6.3 |
強度 (Strength)
從今年開始，很多廠商已經將最大強度下降，由於大量的分析實驗，發現實際上在墜落的強度不需要這麼高。一般來說，強度會跟耐用性有正相關，但跟重量成負相關。
下表是依照強度來排序，Black Diamond 今年推出了輕量的C4系列，強度的部份就下降2kN
，而Wildcountry 也有這樣的趨勢，不過DMM還是強打高強度的部份。
| Brand | size | strength(kN) | Range Min | Range Max | Range (mm) | weight | unit weight (g/mm) |
| BD - C4 | 3 | 14 | 50.7 | 87.9 | 37.2 | 201 | 5.4 |
| BD - C4 | 2 | 14 | 37.2 | 64.9 | 27.7 | 155 | 5.6 |
| BD - C4 | 4 | 14 | 66.0 | 114.7 | 48.7 | 289 | 5.9 |
| BD - C4 | 1 | 14 | 30.2 | 52.1 | 21.9 | 136 | 6.2 |
| BD - C4 | 0.75 | 14 | 23.9 | 41.2 | 17.3 | 119 | 6.9 |
| DMM - Dragon | 4 | 14 | 38.0 | 64.0 | 26.0 | 154 | 5.9 |
| DMM - Dragon | 5 | 14 | 50.0 | 85.0 | 35.0 | 208 | 5.9 |
| DMM - Dragon | 3 | 14 | 29.0 | 50.0 | 21.0 | 128 | 6.1 |
| DMM - Dragon | 6 | 14 | 68.0 | 114.0 | 46.0 | 299 | 6.5 |
| DMM - Dragon | 2 | 14 | 24.0 | 41.0 | 17.0 | 117 | 6.9 |
| DMM - Dragon | 1 | 14 | 20.0 | 33.0 | 13.0 | 103 | 7.9 |
| DMM - Dragon | 0 | 14 | 16.0 | 25.0 | 9.0 | 85 | 9.4 |
| BD - C4 | 0.5 | 12 | 19.6 | 33.5 | 13.9 | 99 | 7.1 |
| BD - UL C4 | 3 | 12 | 50.7 | 87.9 | 37.2 | 167 | 4.5 |
| BD - UL C4 | 2 | 12 | 37.2 | 64.9 | 27.7 | 126 | 4.5 |
| BD - UL C4 | 1 | 12 | 30.2 | 52.1 | 21.9 | 101 | 4.6 |
| BD - UL C4 | 4 | 12 | 66.0 | 114.7 | 48.7 | 225 | 4.6 |
| WC-New Friends | 2 | 12 | 41.5 | 69.3 | 27.8 | 142 | 5.1 |
| WC-New Friends | 3 | 12 | 52.7 | 88 | 35.3 | 192 | 5.4 |
| WC-New Friends | 1 | 12 | 31.7 | 53.6 | 21.9 | 123 | 5.6 |
| WC-New Friends | 4 | 12 | 66.8 | 112.1 | 45.3 | 260 | 5.7 |
| WC-New Friends | 0.75 | 12 | 25.8 | 43 | 17.2 | 102 | 5.9 |
| WC-New Friends | 0.5 | 12 | 20.6 | 34.5 | 13.9 | 88 | 6.3 |
| BD - C4 | 0.4 | 10 | 15.5 | 26.7 | 11.2 | 83 | 7.4 |
| BD - UL C4 | 0.75 | 10 | 23.9 | 41.2 | 17.3 | 89 | 5.1 |
| BD - UL C4 | 0.5 | 10 | 19.6 | 33.5 | 13.9 | 74 | 5.3 |
| DMM - Dragon | *00 | 10 | 13.0 | 21.0 | 8.0 | 75 | 9.4 |
| Metolious- UL Master Cam | 8 | 10 | 48.5 | 71.5 | 23.0 | 129 | 5.6 |
| Metolious- UL Master Cam | 6 | 10 | 32.5 | 48.0 | 15.5 | 96 | 6.2 |
| Metolious- UL Master Cam | 7 | 10 | 40.0 | 57.5 | 17.5 | 112 | 6.4 |
| Metolious- UL Master Cam | 5 | 10 | 28.0 | 39.5 | 11.5 | 85 | 7.4 |
| Metolious- UL Master Cam | 4 | 10 | 23.5 | 33.5 | 10.0 | 75 | 7.5 |
| Metolious- UL Master Cam | 2 | 10 | 15.5 | 22.5 | 7.0 | 55 | 7.9 |
| Metolious- UL Master Cam | 3 | 10 | 18.5 | 26.5 | 8.0 | 65 | 8.1 |
| BD - X4 | 0.75 | 9 | 24.0 | 41.2 | 17.2 | 112 | 6.5 |
| BD - X4 | 0.5 | 9 | 19.8 | 33.7 | 13.9 | 91 | 6.5 |
| BD - X4 | 0.4 | 9 | 15.5 | 26.6 | 11.1 | 82 | 7.4 |
| BD - C4 | 0.3 | 8 | 13.8 | 23.4 | 9.6 | 75 | 7.8 |
| BD - UL C4 | 0.4 | 8 | 15.5 | 26.7 | 11.2 | 61 | 5.4 |
| BD - X4 | 0.3 | 8 | 12.4 | 21.2 | 8.8 | 75 | 8.5 |
| Metolious- UL Master Cam | 1 | 8 | 12.5 | 18.0 | 5.5 | 52 | 9.5 |
| BD - X4 | 0.2 | 6 | 9.9 | 16.5 | 6.6 | 54 | 8.2 |
| BD - X4 | 0.1 | 5 | 8.4 | 13.8 | 5.4 | 51 | 9.4 |
| Metolious- UL Master Cam | 0 | 5 | 10.0 | 15.0 | 5.0 | 45 | 9.0 |
| Metolious- UL Master Cam | *00 | 5 | 8.5 | 12.0 | 3.5 | 45 | 12.9 |
操作範圍下限 (Range Min.)
這部份主要是針對小的Cam來做比較，越小的排序會在前面，可以明顯發現，BD - X4 和 Metolious - Master Cam 都有針對這部份做開發，要做到比較小的操作下限，必須要採用單軸結構，因此即使是以雙軸為主打的BD，在小範圍的部份也需要改成使用單軸的架構。
| Brand | size | strength(kN) | Range Min | Range Max | Range (mm) | weight | unit weight (g/mm) |
| BD - X4 | 0.1 | 5 | 8.4 | 13.8 | 5.4 | 51 | 9.4 |
| Metolious- UL Master Cam | *00 | 5 | 8.5 | 12.0 | 3.5 | 45 | 12.9 |
| BD - X4 | 0.2 | 6 | 9.9 | 16.5 | 6.6 | 54 | 8.2 |
| Metolious- UL Master Cam | 0 | 5 | 10.0 | 15.0 | 5.0 | 45 | 9.0 |
| BD - X4 | 0.3 | 8 | 12.4 | 21.2 | 8.8 | 75 | 8.5 |
| Metolious- UL Master Cam | 1 | 8 | 12.5 | 18.0 | 5.5 | 52 | 9.5 |
| DMM - Dragon | *00 | 10 | 13.0 | 21.0 | 8.0 | 75 | 9.4 |
| BD - C4 | 0.3 | 8 | 13.8 | 23.4 | 9.6 | 75 | 7.8 |
| BD - C4 | 0.4 | 10 | 15.5 | 26.7 | 11.2 | 83 | 7.4 |
| Metolious- UL Master Cam | 2 | 10 | 15.5 | 22.5 | 7.0 | 55 | 7.9 |
| BD - X4 | 0.4 | 9 | 15.5 | 26.6 | 11.1 | 82 | 7.4 |
| BD - UL C4 | 0.4 | 8 | 15.5 | 26.7 | 11.2 | 61 | 5.4 |
| DMM - Dragon | 0 | 14 | 16.0 | 25.0 | 9.0 | 85 | 9.4 |
| Metolious- UL Master Cam | 3 | 10 | 18.5 | 26.5 | 8.0 | 65 | 8.1 |
| BD - C4 | 0.5 | 12 | 19.6 | 33.5 | 13.9 | 99 | 7.1 |
| BD - UL C4 | 0.5 | 10 | 19.6 | 33.5 | 13.9 | 74 | 5.3 |
| BD - X4 | 0.5 | 9 | 19.8 | 33.7 | 13.9 | 91 | 6.5 |
| DMM - Dragon | 1 | 14 | 20.0 | 33.0 | 13.0 | 103 | 7.9 |
| WC-New Friends | 0.5 | 12 | 20.6 | 34.5 | 13.9 | 88 | 6.3 |
| Metolious- UL Master Cam | 4 | 10 | 23.5 | 33.5 | 10.0 | 75 | 7.5 |
| BD - C4 | 0.75 | 14 | 23.9 | 41.2 | 17.3 | 119 | 6.9 |
| BD - UL C4 | 0.75 | 10 | 23.9 | 41.2 | 17.3 | 89 | 5.1 |
| DMM - Dragon | 2 | 14 | 24.0 | 41.0 | 17.0 | 117 | 6.9 |
| BD - X4 | 0.75 | 9 | 24.0 | 41.2 | 17.2 | 112 | 6.5 |
| WC-New Friends | 0.75 | 12 | 25.8 | 43 | 17.2 | 102 | 5.9 |
| Metolious- UL Master Cam | 5 | 10 | 28.0 | 39.5 | 11.5 | 85 | 7.4 |
| DMM - Dragon | 3 | 14 | 29.0 | 50.0 | 21.0 | 128 | 6.1 |
| BD - C4 | 1 | 14 | 30.2 | 52.1 | 21.9 | 136 | 6.2 |
| BD - UL C4 | 1 | 12 | 30.2 | 52.1 | 21.9 | 101 | 4.6 |
| WC-New Friends | 1 | 12 | 31.7 | 53.6 | 21.9 | 123 | 5.6 |
| Metolious- UL Master Cam | 6 | 10 | 32.5 | 48.0 | 15.5 | 96 | 6.2 |
| BD - C4 | 2 | 14 | 37.2 | 64.9 | 27.7 | 155 | 5.6 |
| BD - UL C4 | 2 | 12 | 37.2 | 64.9 | 27.7 | 126 | 4.5 |
| DMM - Dragon | 4 | 14 | 38.0 | 64.0 | 26.0 | 154 | 5.9 |
| Metolious- UL Master Cam | 7 | 10 | 40.0 | 57.5 | 17.5 | 112 | 6.4 |
| WC-New Friends | 2 | 12 | 41.5 | 69.3 | 27.8 | 142 | 5.1 |
| Metolious- UL Master Cam | 8 | 10 | 48.5 | 71.5 | 23.0 | 129 | 5.6 |
| DMM - Dragon | 5 | 14 | 50.0 | 85.0 | 35.0 | 208 | 5.9 |
| BD - C4 | 3 | 14 | 50.7 | 87.9 | 37.2 | 201 | 5.4 |
| BD - UL C4 | 3 | 12 | 50.7 | 87.9 | 37.2 | 167 | 4.5 |
| WC-New Friends | 3 | 12 | 52.7 | 88 | 35.3 | 192 | 5.4 |
| BD - C4 | 4 | 14 | 66.0 | 114.7 | 48.7 | 289 | 5.9 |
| BD - UL C4 | 4 | 12 | 66.0 | 114.7 | 48.7 | 225 | 4.6 |
| WC-New Friends | 4 | 12 | 66.8 | 112.1 | 45.3 | 260 | 5.7 |
| DMM - Dragon | 6 | 14 | 68.0 | 114.0 | 46.0 | 299 | 6.5 |
操作範圍上限 (Range Max.)
這個部分要比較的就是比較大支的型號，這裡比較的其實應該是重量的部份，在大操作上限的型號，對整體重量的影響相當大，以BD-C4與BD-UL C4同一個大小重量就差了64g，整整就差了一支小號的Cam!
| Brand | size | strength(kN) | Range Min | Range Max | Range (mm) | weight | unit weight (g/mm) |
| BD - C4 | 4 | 14 | 66.0 | 114.7 | 48.7 | 289 | 5.9 |
| BD - UL C4 | 4 | 12 | 66.0 | 114.7 | 48.7 | 225 | 4.6 |
| DMM - Dragon | 6 | 14 | 68.0 | 114.0 | 46.0 | 299 | 6.5 |
| WC-New Friends | 4 | 12 | 66.8 | 112.1 | 45.3 | 260 | 5.7 |
| WC-New Friends | 3 | 12 | 52.7 | 88 | 35.3 | 192 | 5.4 |
| BD - C4 | 3 | 14 | 50.7 | 87.9 | 37.2 | 201 | 5.4 |
| BD - UL C4 | 3 | 12 | 50.7 | 87.9 | 37.2 | 167 | 4.5 |
| DMM - Dragon | 5 | 14 | 50.0 | 85.0 | 35.0 | 208 | 5.9 |
| Metolious- UL Master Cam | 8 | 10 | 48.5 | 71.5 | 23.0 | 129 | 5.6 |
| WC-New Friends | 2 | 12 | 41.5 | 69.3 | 27.8 | 142 | 5.1 |
| BD - C4 | 2 | 14 | 37.2 | 64.9 | 27.7 | 155 | 5.6 |
| BD - UL C4 | 2 | 12 | 37.2 | 64.9 | 27.7 | 126 | 4.5 |
| DMM - Dragon | 4 | 14 | 38.0 | 64.0 | 26.0 | 154 | 5.9 |
| Metolious- UL Master Cam | 7 | 10 | 40.0 | 57.5 | 17.5 | 112 | 6.4 |
| WC-New Friends | 1 | 12 | 31.7 | 53.6 | 21.9 | 123 | 5.6 |
| BD - C4 | 1 | 14 | 30.2 | 52.1 | 21.9 | 136 | 6.2 |
| BD - UL C4 | 1 | 12 | 30.2 | 52.1 | 21.9 | 101 | 4.6 |
| DMM - Dragon | 3 | 14 | 29.0 | 50.0 | 21.0 | 128 | 6.1 |
| Metolious- UL Master Cam | 6 | 10 | 32.5 | 48.0 | 15.5 | 96 | 6.2 |
| WC-New Friends | 0.75 | 12 | 25.8 | 43 | 17.2 | 102 | 5.9 |
| BD - C4 | 0.75 | 14 | 23.9 | 41.2 | 17.3 | 119 | 6.9 |
| BD - UL C4 | 0.75 | 10 | 23.9 | 41.2 | 17.3 | 89 | 5.1 |
| BD - X4 | 0.75 | 9 | 24.0 | 41.2 | 17.2 | 112 | 6.5 |
| DMM - Dragon | 2 | 14 | 24.0 | 41.0 | 17.0 | 117 | 6.9 |
| Metolious- UL Master Cam | 5 | 10 | 28.0 | 39.5 | 11.5 | 85 | 7.4 |
| WC-New Friends | 0.5 | 12 | 20.6 | 34.5 | 13.9 | 88 | 6.3 |
| BD - X4 | 0.5 | 9 | 19.8 | 33.7 | 13.9 | 91 | 6.5 |
| BD - C4 | 0.5 | 12 | 19.6 | 33.5 | 13.9 | 99 | 7.1 |
| BD - UL C4 | 0.5 | 10 | 19.6 | 33.5 | 13.9 | 74 | 5.3 |
| Metolious- UL Master Cam | 4 | 10 | 23.5 | 33.5 | 10.0 | 75 | 7.5 |
| DMM - Dragon | 1 | 14 | 20.0 | 33.0 | 13.0 | 103 | 7.9 |
| BD - C4 | 0.4 | 10 | 15.5 | 26.7 | 11.2 | 83 | 7.4 |
| BD - UL C4 | 0.4 | 8 | 15.5 | 26.7 | 11.2 | 61 | 5.4 |
| BD - X4 | 0.4 | 9 | 15.5 | 26.6 | 11.1 | 82 | 7.4 |
| Metolious- UL Master Cam | 3 | 10 | 18.5 | 26.5 | 8.0 | 65 | 8.1 |
| DMM - Dragon | 0 | 14 | 16.0 | 25.0 | 9.0 | 85 | 9.4 |
| BD - C4 | 0.3 | 8 | 13.8 | 23.4 | 9.6 | 75 | 7.8 |
| Metolious- UL Master Cam | 2 | 10 | 15.5 | 22.5 | 7.0 | 55 | 7.9 |
| BD - X4 | 0.3 | 8 | 12.4 | 21.2 | 8.8 | 75 | 8.5 |
| DMM - Dragon | *00 | 10 | 13.0 | 21.0 | 8.0 | 75 | 9.4 |
| Metolious- UL Master Cam | 1 | 8 | 12.5 | 18.0 | 5.5 | 52 | 9.5 |
| BD - X4 | 0.2 | 6 | 9.9 | 16.5 | 6.6 | 54 | 8.2 |
| Metolious- UL Master Cam | 0 | 5 | 10.0 | 15.0 | 5.0 | 45 | 9.0 |
| BD - X4 | 0.1 | 5 | 8.4 | 13.8 | 5.4 | 51 | 9.4 |
| Metolious- UL Master Cam | *00 | 5 | 8.5 | 12.0 | 3.5 | 45 | 12.9 |
重量(Weight)
重量是今年新設計上很重要的指標，各家都在減重上做了很大的努力，目前看來BD的UL - C4 在重量上有很大的領先。雖然在單純本身的重量上，DMM和WC較占下風，但今年有伸長織帶的設計，可以直接少帶一條繩環或是快扣，如果是將這一部分考慮進去，可延長織帶的型號，在整體重量上就有相當的競爭性。
另一個在重量上作手腳的就是將鋼纜的部分換成Dyneema，雖然說Dyneema 在強度上甚至是比鋼纜來的高，但在耐用性上，即使原廠也會表示沒有鋼纜來的耐用，不過在重量及柔軟性上，有相當大的優勢。
重量是今年新設計上很重要的指標，各家都在減重上做了很大的努力，目前看來BD的UL - C4 在重量上有很大的領先。雖然在單純本身的重量上，DMM和WC較占下風，但今年有伸長織帶的設計，可以直接少帶一條繩環或是快扣，如果是將這一部分考慮進去，可延長織帶的型號，在整體重量上就有相當的競爭性。
另一個在重量上作手腳的就是將鋼纜的部分換成Dyneema，雖然說Dyneema 在強度上甚至是比鋼纜來的高，但在耐用性上，即使原廠也會表示沒有鋼纜來的耐用，不過在重量及柔軟性上，有相當大的優勢。
| Brand | size | strength(kN) | Range Min | Range Max | Range (mm) | weight | unit weight (g/mm) |
| DMM - Dragon | 6 | 14 | 68.0 | 114.0 | 46.0 | 299 | 6.5 |
| BD - C4 | 4 | 14 | 66.0 | 114.7 | 48.7 | 289 | 5.9 |
| WC-New Friends | 4 | 12 | 66.8 | 112.1 | 45.3 | 260 | 5.7 |
| BD - UL C4 | 4 | 12 | 66.0 | 114.7 | 48.7 | 225 | 4.6 |
| DMM - Dragon | 5 | 14 | 50.0 | 85.0 | 35.0 | 208 | 5.9 |
| BD - C4 | 3 | 14 | 50.7 | 87.9 | 37.2 | 201 | 5.4 |
| WC-New Friends | 3 | 12 | 52.7 | 88 | 35.3 | 192 | 5.4 |
| BD - UL C4 | 3 | 12 | 50.7 | 87.9 | 37.2 | 167 | 4.5 |
| BD - C4 | 2 | 14 | 37.2 | 64.9 | 27.7 | 155 | 5.6 |
| DMM - Dragon | 4 | 14 | 38.0 | 64.0 | 26.0 | 154 | 5.9 |
| WC-New Friends | 2 | 12 | 41.5 | 69.3 | 27.8 | 142 | 5.1 |
| BD - C4 | 1 | 14 | 30.2 | 52.1 | 21.9 | 136 | 6.2 |
| Metolious- UL Master Cam | 8 | 10 | 48.5 | 71.5 | 23.0 | 129 | 5.6 |
| DMM - Dragon | 3 | 14 | 29.0 | 50.0 | 21.0 | 128 | 6.1 |
| BD - UL C4 | 2 | 12 | 37.2 | 64.9 | 27.7 | 126 | 4.5 |
| WC-New Friends | 1 | 12 | 31.7 | 53.6 | 21.9 | 123 | 5.6 |
| BD - C4 | 0.75 | 14 | 23.9 | 41.2 | 17.3 | 119 | 6.9 |
| DMM - Dragon | 2 | 14 | 24.0 | 41.0 | 17.0 | 117 | 6.9 |
| Metolious- UL Master Cam | 7 | 10 | 40.0 | 57.5 | 17.5 | 112 | 6.4 |
| BD - X4 | 0.75 | 9 | 24.0 | 41.2 | 17.2 | 112 | 6.5 |
| DMM - Dragon | 1 | 14 | 20.0 | 33.0 | 13.0 | 103 | 7.9 |
| WC-New Friends | 0.75 | 12 | 25.8 | 43 | 17.2 | 102 | 5.9 |
| BD - UL C4 | 1 | 12 | 30.2 | 52.1 | 21.9 | 101 | 4.6 |
| BD - C4 | 0.5 | 12 | 19.6 | 33.5 | 13.9 | 99 | 7.1 |
| Metolious- UL Master Cam | 6 | 10 | 32.5 | 48.0 | 15.5 | 96 | 6.2 |
| BD - X4 | 0.5 | 9 | 19.8 | 33.7 | 13.9 | 91 | 6.5 |
| BD - UL C4 | 0.75 | 10 | 23.9 | 41.2 | 17.3 | 89 | 5.1 |
| WC-New Friends | 0.5 | 12 | 20.6 | 34.5 | 13.9 | 88 | 6.3 |
| Metolious- UL Master Cam | 5 | 10 | 28.0 | 39.5 | 11.5 | 85 | 7.4 |
| DMM - Dragon | 0 | 14 | 16.0 | 25.0 | 9.0 | 85 | 9.4 |
| BD - C4 | 0.4 | 10 | 15.5 | 26.7 | 11.2 | 83 | 7.4 |
| BD - X4 | 0.4 | 9 | 15.5 | 26.6 | 11.1 | 82 | 7.4 |
| Metolious- UL Master Cam | 4 | 10 | 23.5 | 33.5 | 10.0 | 75 | 7.5 |
| BD - C4 | 0.3 | 8 | 13.8 | 23.4 | 9.6 | 75 | 7.8 |
| BD - X4 | 0.3 | 8 | 12.4 | 21.2 | 8.8 | 75 | 8.5 |
| DMM - Dragon | *00 | 10 | 13.0 | 21.0 | 8.0 | 75 | 9.4 |
| BD - UL C4 | 0.5 | 10 | 19.6 | 33.5 | 13.9 | 74 | 5.3 |
| Metolious- UL Master Cam | 3 | 10 | 18.5 | 26.5 | 8.0 | 65 | 8.1 |
| BD - UL C4 | 0.4 | 8 | 15.5 | 26.7 | 11.2 | 61 | 5.4 |
| Metolious- UL Master Cam | 2 | 10 | 15.5 | 22.5 | 7.0 | 55 | 7.9 |
| BD - X4 | 0.2 | 6 | 9.9 | 16.5 | 6.6 | 54 | 8.2 |
| Metolious- UL Master Cam | 1 | 8 | 12.5 | 18.0 | 5.5 | 52 | 9.5 |
| BD - X4 | 0.1 | 5 | 8.4 | 13.8 | 5.4 | 51 | 9.4 |
| Metolious- UL Master Cam | 0 | 5 | 10.0 | 15.0 | 5.0 | 45 | 9.0 |
| Metolious- UL Master Cam | *00 | 5 | 8.5 | 12.0 | 3.5 | 45 | 12.9 |
單位操作範圍的重量 （unit weight)
這是我用來判斷的指標，也就是操作一樣的範圍，需要多少的重量，這個部分是整體效率的差異，但事實上對攀岩其實還好，但對技術登山是很重要的指標。這裡的數值越小越好，也就每mm操作範圍，所需要的重量越低。
由表中排序可以看出來BD-UL C4 完勝！相較起來DMM在這方面就比較吃虧。但事實上，這樣的結論是有點不公平的，因為DMM有延伸織帶的設計，在最佳的條件下可以少帶一支快扣，如果以這樣來說的話，DMM 和 Wildcountry 在整體重量上，還是有一定的優勢。
| Brand | size | strength(kN) | Range Min | Range Max | Range (mm) | weight | unit weight (g/mm) |
| BD - UL C4 | 3 | 12 | 50.7 | 87.9 | 37.2 | 167 | 4.5 |
| BD - UL C4 | 2 | 12 | 37.2 | 64.9 | 27.7 | 126 | 4.5 |
| BD - UL C4 | 1 | 12 | 30.2 | 52.1 | 21.9 | 101 | 4.6 |
| BD - UL C4 | 4 | 12 | 66.0 | 114.7 | 48.7 | 225 | 4.6 |
| WC-New Friends | 2 | 12 | 41.5 | 69.3 | 27.8 | 142 | 5.1 |
| BD - UL C4 | 0.75 | 10 | 23.9 | 41.2 | 17.3 | 89 | 5.1 |
| BD - UL C4 | 0.5 | 10 | 19.6 | 33.5 | 13.9 | 74 | 5.3 |
| BD - C4 | 3 | 14 | 50.7 | 87.9 | 37.2 | 201 | 5.4 |
| WC-New Friends | 3 | 12 | 52.7 | 88 | 35.3 | 192 | 5.4 |
| BD - UL C4 | 0.4 | 8 | 15.5 | 26.7 | 11.2 | 61 | 5.4 |
| BD - C4 | 2 | 14 | 37.2 | 64.9 | 27.7 | 155 | 5.6 |
| Metolious- UL Master Cam | 8 | 10 | 48.5 | 71.5 | 23.0 | 129 | 5.6 |
| WC-New Friends | 1 | 12 | 31.7 | 53.6 | 21.9 | 123 | 5.6 |
| WC-New Friends | 4 | 12 | 66.8 | 112.1 | 45.3 | 260 | 5.7 |
| DMM - Dragon | 4 | 14 | 38.0 | 64.0 | 26.0 | 154 | 5.9 |
| WC-New Friends | 0.75 | 12 | 25.8 | 43 | 17.2 | 102 | 5.9 |
| BD - C4 | 4 | 14 | 66.0 | 114.7 | 48.7 | 289 | 5.9 |
| DMM - Dragon | 5 | 14 | 50.0 | 85.0 | 35.0 | 208 | 5.9 |
| DMM - Dragon | 3 | 14 | 29.0 | 50.0 | 21.0 | 128 | 6.1 |
| Metolious- UL Master Cam | 6 | 10 | 32.5 | 48.0 | 15.5 | 96 | 6.2 |
| BD - C4 | 1 | 14 | 30.2 | 52.1 | 21.9 | 136 | 6.2 |
| WC-New Friends | 0.5 | 12 | 20.6 | 34.5 | 13.9 | 88 | 6.3 |
| Metolious- UL Master Cam | 7 | 10 | 40.0 | 57.5 | 17.5 | 112 | 6.4 |
| DMM - Dragon | 6 | 14 | 68.0 | 114.0 | 46.0 | 299 | 6.5 |
| BD - X4 | 0.75 | 9 | 24.0 | 41.2 | 17.2 | 112 | 6.5 |
| BD - X4 | 0.5 | 9 | 19.8 | 33.7 | 13.9 | 91 | 6.5 |
| BD - C4 | 0.75 | 14 | 23.9 | 41.2 | 17.3 | 119 | 6.9 |
| DMM - Dragon | 2 | 14 | 24.0 | 41.0 | 17.0 | 117 | 6.9 |
| BD - C4 | 0.5 | 12 | 19.6 | 33.5 | 13.9 | 99 | 7.1 |
| BD - X4 | 0.4 | 9 | 15.5 | 26.6 | 11.1 | 82 | 7.4 |
| Metolious- UL Master Cam | 5 | 10 | 28.0 | 39.5 | 11.5 | 85 | 7.4 |
| BD - C4 | 0.4 | 10 | 15.5 | 26.7 | 11.2 | 83 | 7.4 |
| Metolious- UL Master Cam | 4 | 10 | 23.5 | 33.5 | 10.0 | 75 | 7.5 |
| BD - C4 | 0.3 | 8 | 13.8 | 23.4 | 9.6 | 75 | 7.8 |
| Metolious- UL Master Cam | 2 | 10 | 15.5 | 22.5 | 7.0 | 55 | 7.9 |
| DMM - Dragon | 1 | 14 | 20.0 | 33.0 | 13.0 | 103 | 7.9 |
| Metolious- UL Master Cam | 3 | 10 | 18.5 | 26.5 | 8.0 | 65 | 8.1 |
| BD - X4 | 0.2 | 6 | 9.9 | 16.5 | 6.6 | 54 | 8.2 |
| BD - X4 | 0.3 | 8 | 12.4 | 21.2 | 8.8 | 75 | 8.5 |
| Metolious- UL Master Cam | 0 | 5 | 10.0 | 15.0 | 5.0 | 45 | 9.0 |
| DMM - Dragon | *00 | 10 | 13.0 | 21.0 | 8.0 | 75 | 9.4 |
| DMM - Dragon | 0 | 14 | 16.0 | 25.0 | 9.0 | 85 | 9.4 |
| BD - X4 | 0.1 | 5 | 8.4 | 13.8 | 5.4 | 51 | 9.4 |
| Metolious- UL Master Cam | 1 | 8 | 12.5 | 18.0 | 5.5 | 52 | 9.5 |
| Metolious- UL Master Cam | *00 | 5 | 8.5 | 12.0 | 3.5 | 45 | 12.9 |
總結 (Summary)
在Cam的選擇上，各家都有著重的項目，各型號的優缺點大致分析如下:
Blackdiamond - Camalots (C4)
目前最普及的型號之一，價錢與型能比相當高，與同期的產品相比，雙軸的設計使得可使用的岩隙範圍較大，缺點就是重量較重，而且沒有延伸扁帶的功能。
Blackdiamond - Camalots X4 (X4)
就是針對小岩隙所出的產品，與 Metolious 的 Ultra Light Master Cam 相當，但重量方面就差了一些。
Blackdiamond - Ultra Light Camalots (UL-C4)
這是BD 2016 的最新產品，將強度部分下降，但重量大幅減低25%，但缺點是沒有延伸扁帶的設計。
DMM - Dragon
品質上有一定的水準，高強度的設計，特徵的可延伸織帶，在使用上有一定的便利性，而且有整體的優勢，缺點是可適用範圍一般，重量較重，而且價錢相當不親民。
Metolious Ultralight Master Cam
有著完整的使用範圍，重量相當輕，但在強度上較目前的產品都較低，價錢相當有競爭性。
Wildcountry - New Friends
身為Cam的始祖，在技術開發上當然有一定的優勢，最新的產品不但減重，有延伸織帶的設計，但缺點是使用範圍一般，跟DMM 一樣英國製造，所以價錢也是偏高。
應該選擇哪一個型號?
Cam 的選擇就像是買車一樣，並沒有絕對的好壞，必須由應用的情況來做決定，一般來說，技術登山，重量會是蠻大的考慮，而攀岩的話，就要看攀登及使用習慣，有人偏好耐用，
有人偏好輕量，也有人喜歡好的質感，但只要找到適合你的Cam，就是好的"朋友(Friends)" !
在Cam的選擇上，各家都有著重的項目，各型號的優缺點大致分析如下:
Blackdiamond - Camalots (C4)
目前最普及的型號之一，價錢與型能比相當高，與同期的產品相比，雙軸的設計使得可使用的岩隙範圍較大，缺點就是重量較重，而且沒有延伸扁帶的功能。
Blackdiamond - Camalots X4 (X4)
就是針對小岩隙所出的產品，與 Metolious 的 Ultra Light Master Cam 相當，但重量方面就差了一些。
Blackdiamond - Ultra Light Camalots (UL-C4)
這是BD 2016 的最新產品，將強度部分下降，但重量大幅減低25%，但缺點是沒有延伸扁帶的設計。
DMM - Dragon
品質上有一定的水準，高強度的設計，特徵的可延伸織帶，在使用上有一定的便利性，而且有整體的優勢，缺點是可適用範圍一般，重量較重，而且價錢相當不親民。
Metolious Ultralight Master Cam
有著完整的使用範圍，重量相當輕，但在強度上較目前的產品都較低，價錢相當有競爭性。
Wildcountry - New Friends
身為Cam的始祖，在技術開發上當然有一定的優勢，最新的產品不但減重，有延伸織帶的設計，但缺點是使用範圍一般，跟DMM 一樣英國製造，所以價錢也是偏高。
應該選擇哪一個型號?
Cam 的選擇就像是買車一樣，並沒有絕對的好壞，必須由應用的情況來做決定，一般來說，技術登山，重量會是蠻大的考慮，而攀岩的話，就要看攀登及使用習慣，有人偏好耐用，
有人偏好輕量，也有人喜歡好的質感，但只要找到適合你的Cam，就是好的"朋友(Friends)" !
