Zoom lens and optical apparatus including zoom lens

A zoom lens, comprising, in order from a magnifying side:

• a first lens unit (L1) having a negative refractive power;
• a second lens unit (L2) having a positive refractive power;
• and
• a rear lens group, which includes multiple lens units and has a positive refractive power as a whole,
• wherein at least two lens units are moved for magnification,
• wherein the first lens unit (L1) includes a first lens having a negative refractive power, and
• wherein the following conditions are satisfied:
• 0.79<θgFNL−(1.0E−4×νdNL2−9.1E−3×νdNL)<1.00,
• 1.5<(R1+R2)/(R1−R2)<10.0, and
• 0.0005<|(ΔθgFNL·fw)/(νdNL·fNL)|<0.0020,
• where R1 and R2 indicate a magnifying side curvature radius and a reduction side curvature radius of the first lens, θgFNL indicates a partial dispersion ratio of the first lens with respect to a g-line and an F-line, νdNL indicates an Abbe number of the first lens, NNL indicates a refractive index of the first lens, and fNL indicates a focal length of the first lens, and
• where ΔθgFNL=θgFNL−(−0.001682×νdNL+0.6438).