Bidonlens.com is the place to look for awesome deals to buy Canon Lenses at very affordable prices. You can expect the prices to be low and you will only pay what you're willing to pay.

If there are no Canon Lenses available at your price range, just come back again and you'll find something you're willing to pay for.
15-30x Telescope for Sony A230 A330 A380 A500 A550 A850

15-30x Telescope for Sony A230 A330 A380 A500 A550 A850

 1 $149.99 17m
72mm 0.45x WIDE Angle + Macro Conversion LENS 72 0.45

72mm 0.45x WIDE Angle + Macro Conversion LENS 72 0.45

 $57.99 19m
Canon EF 17-40 f 4 L USM Lens No Reserve PRISTINE USA

Canon EF 17-40 f 4 L USM Lens No Reserve PRISTINE USA

 4 $561.99 25m
Canon EF 70-300mm IS USM Lens Digital Rebel XSi XTi 50D

Canon EF 70-300mm IS USM Lens Digital Rebel XSi XTi 50D

 $599.95 40m
Tamron AF 18-200mm f 3.5-6.3 XR Di II LD Zoom Lens

Tamron AF 18-200mm f 3.5-6.3 XR Di II LD Zoom Lens

 16 $166.50 43m
67mm 0.3X Fisheye + 12.5 Macro Converter Lens

67mm 0.3X Fisheye + 12.5 Macro Converter Lens

 $84.99 1h 5m
WIDE ANGLE LENS Fisheye FITS CANON EOS REBEL 300D 400D

WIDE ANGLE LENS Fisheye FITS CANON EOS REBEL 300D 400D

 $43.88 1h 15m
Canon EFS EF-S 18-55 f 3.5-5.6 IS DSLR Lens 18-55mm

Canon EFS EF-S 18-55 f 3.5-5.6 IS DSLR Lens 18-55mm

$107.99 1h 19m
.25x Fisheye Lens for Canon Digital EOS 50D 40D 5D 7D

.25x Fisheye Lens for Canon Digital EOS 50D 40D 5D 7D

 $119.95 2h 1m
WIDE ANGLE Lens for Canon EOS -1000D Digital Rebel XSi

WIDE ANGLE Lens for Canon EOS -1000D Digital Rebel XSi

 2 $28.99 2h 18m
Sigma 18-250mm f 3.5-6.3 DC OS HSM 18-250 for Canon

Sigma 18-250mm f 3.5-6.3 DC OS HSM 18-250 for Canon

 $569.90 2h 22m
Pro 0.42x WIDE Angle Macro Lens for Canon EOS XTi 400D

Pro 0.42x WIDE Angle Macro Lens for Canon EOS XTi 400D

 $41.42 2h 33m
Russian new Jupiter-9 camera lens 2 85mm f2 85 M42

Russian new Jupiter-9 camera lens 2 85mm f2 85 M42

 $145.00 2h 44m
Canon EF-S 55-250mm IS Lens

Canon EF-S 55-250mm IS Lens

 7 $192.50 3h 4m
Contax Planar 135mm F2 AEG Lens Germany 135 2

Contax Planar 135mm F2 AEG Lens Germany 135 2

 $1,395.55 3h 8m
Sigma 10-20mm 10-20 f 3.5 f3.5 F3.5 3.5 EX DC HSM Canon

Sigma 10-20mm 10-20 f 3.5 f3.5 F3.5 3.5 EX DC HSM Canon

 $610.88 3h 13m
72MM WIDE ANGLE+TELEPHOTO LENS FOR CANON 40D 50D 72 MM

72MM WIDE ANGLE+TELEPHOTO LENS FOR CANON 40D 50D 72 MM

 $44.95 3h 27m
Kenko Pro1D UV 52mm 52 for Pentax Sigma Tamron Tokina

Kenko Pro1D UV 52mm 52 for Pentax Sigma Tamron Tokina

$32.00 3h 29m
Kenko Pro1D UV 55mm 55 for Pentax Sigma Tamron Tokina

Kenko Pro1D UV 55mm 55 for Pentax Sigma Tamron Tokina

$33.00 3h 30m
Kenko Pro1D UV 58mm 58 for Pentax Sigma Tamron Tokina

Kenko Pro1D UV 58mm 58 for Pentax Sigma Tamron Tokina

$34.00 3h 31m
There are Canon Lenses at all sorts of prices. It's not hard to find what you need. You'll find something you like eventually.