Tamron SP 28-105mm F/2.8 Aspherical IF LD (176D) Lens For Canon EF Mount {82}

Tamron 28-105mm f/2.8: constant aperture zoom for Canon EF

A constant f/2.8 across a 28-105mm range is a serious commitment in a zoom lens. Tamron's SP AF 176D holds that aperture at every focal length, which matters when you're shooting in changing or low light and can't afford to lose a stop as you zoom in. The range itself covers wide environmental shots at 28mm through short telephoto at 105mm, making it a single-lens solution for a lot of working scenarios.

LD (Low Dispersion) glass addresses chromatic aberration at the edges of the frame, where faster lenses tend to show color fringing. The aspherical elements reduce spherical distortion, and Internal Focus keeps the front element stationary during focusing so filter orientation stays consistent. The 82mm filter thread is large but expected for a lens this fast at this focal length. This is a well-specified zoom built around the Canon EF mount, fitting the full EOS digital and film lineup natively.

Who It's For

Event photographers working variable-light venues get the most from the constant f/2.8, which keeps exposure consistent without re-metering as focal length changes. Portrait shooters can use the 105mm end to work at moderate telephoto distances with a wide aperture. Documentary and photojournalists covering unpredictable scenes benefit from the 28-105mm range as a single carry option. Canon EF film shooters running any EOS film body have direct native compatibility without modification.

Key Features

• Constant f/2.8 aperture from 28-105mm focal range
• LD (Low Dispersion) glass minimizes chromatic aberration
• Aspherical elements reduce spherical distortion
• Internal Focus keeps front element stationary during autofocus
• 82mm filter thread
• Canon EF mount compatibility

FAQ

What focal length range does this lens cover?

28-105mm, spanning wide environmental work through short telephoto in a single zoom.

Is the f/2.8 aperture constant across the zoom range?

Yes. The SP AF 176D holds f/2.8 at every focal length from 28mm to 105mm.

What optical coatings or glass does this lens use?

LD (Low Dispersion) glass to control chromatic aberration, plus aspherical elements to reduce spherical distortion.

Does the front element rotate during focusing?

No. Internal Focus keeps the front element stationary, so filter orientation stays consistent throughout focusing.

What filter size does this lens use?

82mm.

Which Canon camera bodies does this lens mount on?

The Canon EF mount fits the full EOS digital and film lineup natively.

Is this lens a constant aperture zoom?

Yes, it maintains f/2.8 across its entire 28-105mm range, avoiding aperture shift as you zoom.