Important trade-off
The 28-70 F2 adds 223 g over the 24-70 GM II and changes the filter diameter.
- Sony FE 28-70mm F2 GM
- 918 g
- Sony FE 24-70mm F2.8 GM II
- 695 g
- Comparable models
- 2 of 18
Best for this need
Our pick

Start with Sony 24-70 GM II for a mixed event with nearby groups and portraits. Choose Tamron 35-150 when a farther subject makes lens changes frequent, Tamron 70-180 G2 when a normal zoom is already owned, or Sony 28-70 F2 when the extra stop will be used often enough to justify its narrower start and larger kit.
24 mm helps with nearby groups while constant F2.8 covers portraits in available light. The lens is 695 g and stops at 70 mm, so it is not a complete answer for a distant stage. Check the seat and subject distance before buying.
Choose a Sony E event lens around seating distance, moving people and group depth. Compare one-lens coverage with brighter specialist options.
What the facts say
Useful conclusions from the current sony e-mount lenses comparison, followed by the checked facts used to reach them.
The 28-70 F2 adds 223 g over the 24-70 GM II and changes the filter diameter.
Calculation note918 minus 695 equals 223 g before camera and accessories. The F2 lens uses 86 mm filters rather than 82 mm and starts at 28 mm rather than 24 mm. The extra stop must solve a real exposure need.
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| Sony FE 24-70mm F2.8 GM II | No positive match recorded for these needs |
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| Tamron 35-150mm F2-2.8 for Sony E | No positive match recorded for these needs |
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| Tamron 70-180mm F2.8 G2 for Sony E | No positive match recorded for these needs |
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| Sony FE 28-70mm F2 GM | No positive match recorded for these needs |
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What matters in practice
Choose the lens around where you can stand and which moment cannot be repeated.
A nearby group and a performer at the back of a hall need different ranges. A 24-70 can be a useful general event lens yet be too short from a fixed seat. A 70-180 can reach the performer yet cut off a nearby group. Tamron 35-150 bridges more of that sequence, while retaining a 35 mm wide-end limit. Inspect the venue and rules where possible. A bright lens cannot repair framing that does not include the intended people.
F2 offers roughly one stop over F2.8, which can be used for a faster shutter or lower ISO under otherwise equal conditions. It also reduces depth of field. For a moving individual this may be valuable. For a group at several distances, stopping down may be necessary and the maximum-aperture advantage becomes unused. No single shutter speed freezes every performer, child or pet. Camera autofocus and actual subject motion remain part of the result.
The 70-180 G2 documents VC for camera movement. A steady camera can still record a blurred moving subject during a slow exposure. Choose shutter speed for the subject first, then assess stabilization for the handholding task. Do not rank different brands’ claimed stabilization stops as though they were measured on the same body under the same conditions.
A 35-150 weighs 1165 g. A 28-75 G2 at 540 g plus a 70-180 G2 at 855 g totals 1395 g before accessories. The single lens saves 230 g against that specific pair and avoids a normal-to-telephoto swap, but the pair also covers 28 mm and 180 mm. Those are different capabilities. The 35-150 can be the simpler event choice only if its missing endpoints do not force another lens back into the bag.
A ring, decoration or handmade object can be a real second job during an event. Maximum magnification may occur at a very close wide-end position rather than the portrait setting. Check front clearance and light access. Filters also change the usable purchase: GM II uses 82 mm, the F2 normal zoom 86 mm, 35-150 uses 82 mm and 70-180 uses 67 mm. Confirm the exact filter, hood and support setup before a one-off event.
4 options

Sony, SEL2470GM2
A normal zoom for rooms, moving people and a mix of portraits without changing lenses. The 24 mm end helps when a wall or another guest blocks your next step back. Constant F2.8 gives more exposure flexibility than F4, but a group spread across different distances may still need a smaller aperture. Its 695 g body is a substantial part of a family day bag.
Winner when24 mm helps with nearby groups while constant F2.8 covers portraits in available light. The lens is 695 g and stops at 70 mm, so it is not a complete answer for a distant stage. Check the seat and subject distance before buying.
Stops at 70 mm. A distant stage or field may still need another lens.
Tamron, AFA058S700
An event lens for a person who needs to move quickly from nearby portraits to a stage without opening the camera bag. It can replace a lens swap, but it does not offer a wide 24 mm group view. The 1165 g body and 82 mm filters are part of the bargain. F2 belongs to the wide end, with F2.8 at 150 mm.
Choose instead whenThe event repeatedly moves from nearby portraits to a farther subject and changing lenses is inconvenient. It weighs 1165 g and starts at 35 mm, so a tight group may still need another lens. F2 is at the wide end, with F2.8 at 150 mm.
35 mm can be too tight for a nearby group. A separate wide lens may still come along.

Tamron, AFA065S700
A shorter bright telephoto for a parent who photographs both indoor events and close details. VC helps camera movement, while F2.8 keeps more light available for moving subjects. Its strongest close-up setting is at 70 mm with about 12 cm front clearance. The lens stops at 180 mm, so check whether that reach is enough from the usual seat.
Choose instead whenA normal zoom already handles nearby people and you need a shorter F2.8 telephoto with VC and 67 mm filters. It stops at 180 mm. Its strongest close-up is at 70 mm with about 12 cm front clearance.
180 mm has less reach than 200 mm from the same position. Cropping spends resolution.
Sony, SEL2870GM
A premium normal zoom for people who repeatedly photograph movement in available light. F2 across the range provides roughly one stop more exposure headroom than F2.8. The benefit is smaller when a group needs stopping down for depth of field. Its 28 mm start also leaves less room for a crowded indoor group than a 24 mm zoom.
Choose instead whenFrequent dim movement can use F2’s shallower depth of field. It adds 223 g over GM II, starts at 28 mm and needs 86 mm filters. A group photographed stopped down does not benefit from the unused F2 maximum.
918 g with an 86 mm filter thread. A larger filter and carrying slot may join the lens purchase.
Ready to choose?
Our pick for this need

24 mm helps with nearby groups while constant F2.8 covers portraits in available light. The lens is 695 g and stops at 70 mm, so it is not a complete answer for a distant stage. Check the seat and subject distance before buying.
See price & reviews on AmazonChoose instead when
The event repeatedly moves from nearby portraits to a farther subject and changing lenses is inconvenient. It weighs 1165 g and starts at 35 mm, so a tight group may still need another lens. F2 is at the wide end, with F2.8 at 150 mm.
See price & reviews on Amazon