Full Frame Focal Length
Full Frame with 1.4x tele
Full Frame with 2x tele
Canon 1.3x APS-H sensor
Canon 1.3x sensor with 1.4x tele
Canon 1.3x sensor with 2x tele
Nikon DX 1.5x sensor
Nikon 1.5x sensor with 1.4x tele
Nikon 1.5x sensor with 2x tele
Canon 1.6x APS sensor
Canon 1.6x sensor with 1.4x tele
Canon 1.6x sensor with 2x tele
Film, Canon 1ds, 1ds Mark II, 1ds Mark III, Canon 5d, Nikon d3 Professional quality 1.4x by same manufacturer as lens -- normally only works with pro-grade lenses and 200mm+, lose 1 stop of light Professional quality 2x by same manufacturer as lens -- normally only works with pro-grade lenses and 200mm+, lose 2 stops of light Canon 1d, 1d Mark II, 1d Mark IIn, 1d Mark III Professional quality 1.4x by same manufacturer as lens -- normally only works with pro-grade lenses and 200mm+, lose 1 stop of light Professional quality 2x by same manufacturer as lens -- normally only works with pro-grade lenses and 200mm+, lose 2 stops of light Nikon d1, d1h, d1x, d2h, d2hs, d2x, d100, d200, d300, d80, d70, etc. Professional quality 1.4x by same manufacturer as lens -- normally only works with pro-grade lenses and 200mm+, lose 1 stop of light Professional quality 2x by same manufacturer as lens -- normally only works with pro-grade lenses and 200mm+, lose 2 stops of light Canon 10d, 20d, 30d, 40d, and digital Rebel series Professional quality 1.4x by same manufacturer as lens -- normally only works with pro-grade lenses and 200mm+ Professional quality 2x by same manufacturer as lens -- normally only works with pro-grade lenses and 200mm+
8mm fisheye
N/A
N/A
10.4mm
N/A
N/A
12mm
N/A
N/A
12.8mm
N/A
N/A
10mm
N/A
N/A
13mm
N/A
N/A
15mm
N/A
N/A
16mm
N/A
N/A
10-30mm
N/A
N/A
13-39mm
N/A
N/A
15-45mm
N/A
N/A
16-48mm
N/A
N/A
14mm
N/A
N/A
18.2mm
N/A
N/A
21mm
N/A
N/A

22.4mm
N/A
N/A
16mm
N/A
N/A
20.8mm
N/A
N/A
24mm
N/A
N/A
25.6mm
N/A
N/A
16-35mm
N/A
N/A
20.8-45.5mm
N/A
N/A
N/A
N/A
N/A
25.6-56mm
N/A
N/A
17-35mm
N/A
N/A
N/A
N/A
N/A
25.5-52.5mm
N/A
N/A
N/A
N/A
N/A
20mm
N/A
N/A
26mm
N/A
N/A
30mm
N/A
N/A
32mm
N/A
N/A
24mm
N/A
N/A
31.2mm
N/A
N/A
36mm
N/A
N/A
38.4mm
N/A
N/A
24-70mm
N/A
N/A
31.2-91mm
N/A
N/A
36-105mm
N/A
N/A
38.4-112mm
N/A
N/A
35mm
N/A
N/A
45.5mm
N/A
N/A
52.5mm
N/A
N/A
56mm
N/A
N/A
50mm
N/A
N/A
65mm
N/A
N/A
75mm
N/A
N/A
80mm
N/A
N/A
60mm
N/A
N/A
78mm
N/A
N/A
90mm
N/A
N/A
96mm
N/A
N/A
70-200mm
98-280mm
140-400mm
91-260mm
127.4-364mm
182-520mm
105-300mm
147-420mm
210-600mm
112-320mm
156.8-448mm
224-640mm
80-200mm
112-280mm
160-400mm
N/A
N/A
N/A
120-300mm
168-420mm
240-600mm
N/A
N/A
N/A
85mm
N/A
N/A
110.5mm
N/A
N/A
127.5mm
N/A
N/A
136mm
N/A
N/A
100mm
N/A
N/A
130mm
N/A
N/A
150mm
N/A
N/A
160mm
N/A
N/A
100-300mm
140-420mm
200-600mm
130-390mm
182-546mm
260-780mm
150-450mm
210-630mm
300-900mm
160-480mm
224-672mm
320-960mm
105mm
N/A
N/A
136.5mm
N/A
N/A
157.5mm
N/A
N/A
168mm
N/A
N/A
135mm
N/A
N/A
175.5mm
N/A
N/A
202.5mm
N/A
N/A
216mm
N/A
N/A
180mm
N/A
N/A
234mm
N/A
N/A
270mm
N/A
N/A
288mm
N/A
N/A
200mm
280mm
400mm
260mm
364mm
520mm
300mm
420mm
600mm
320mm
448mm
640mm
300mm
420mm
600mm
390mm
546mm
780mm
450mm
630mm
900mm
480mm
672mm
960mm
400mm
560mm
800mm
520mm
728mm
1040mm
600mm
840mm
1200mm
640mm
896mm
1280mm
500mm
700mm
1000mm
650mm
910mm
1300mm
750mm
1050mm
1500mm
800mm
1120mm
1600mm
600mm
840mm
1200mm
780mm
1092mm
1560mm
900mm
1260mm
1800mm
960mm
1344mm
1920mm
800mm
1120mm
1600mm
1040mm
1456mm
2080mm
1200mm
1680mm
2400mm
1280mm
1792mm
2560mm
1000mm
1400mm
2000mm
1300mm
1820mm
2600mm
1500mm
2100mm
3000mm
1600mm
2240mm
3200mm
1200mm
1680mm
2400mm
1560mm
2184mm
3120mm
1800mm
2520mm
3600mm
1920mm
2688mm
3840mm
1400mm
1960mm
2800mm
1820mm
2548mm
3640mm
2100mm
2940mm
4200mm
2240mm
3136mm
4880mm
1600mm
2240mm
3200mm
2080mm
2912mm
4160mm
2400mm
3360mm
4800mm
2560mm
3584mm
5120mm
1800mm
2520mm
3600mm
2340mm
3276mm
4680mm
2700mm
3780mm
5400mm
2880mm
4032mm
5760mm
2000mm
2800mm
4000mm
2600mm
3640mm
5200mm
3000mm
4200mm
6000mm
3200mm
4480mm
6400mm


Digital Conversion Chart

This chart is for figuring out camera effective focal lengths of lenses on DSLR (digital single lens reflex) cameras as compares to traditional film SLRs. Keep in mind, the depth of field of the lens does not change just because the effective focal length of a lens changes. Note: 50mm is roughly the same size relation as what the human eye sees. Therefore, 100mm is roughly 2X and a 200mm would be roughly 4X. Also note, this focal length change does not come with the loss of light (or F-stop change) that is normally associated with 1.4X and 2X convertors. The following list covers most popular focal lengths:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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