I’ve owned the Sony FE 70-300 F4.5-5.6 G OSS lens since it was first released and used it a great deal on my Sony a6500 because the longest APS-C lens available for quite some time has been the Sony E 55-210mm.
However, with the FE 70-300 being a full-frame lens I always wished there was a smaller and less expensive APS-C alternative with a similar focal range, image quality and AF speed. Thankfully that wish was finally granted when Sony announced the E 70-350mm G OSS lens for APS-C cameras.
I’ve only recently received the the 70-350 so this comparison is only just getting started. Over the coming weeks I will be expanding on it just like with my Sony 200-600 vs 100-400 Comparison.
Latest Update: Added a couple of sharpness comparisons, an autofocus test with Frank and some sample images.
Comparison Contents Menu
For these sharpness tests I used my Sony a6400 mounted on my Sirui W-2204 tripod.
I turned off stabilization, used the electronic shutter to avoid any shutter shock and triggered the a6400 shutter using the Sony RMT-P1BT Remote Control (#afflinks Amazon).
I also manually focused with the help of focus peaking + focus zoom and took multiple shots whilst micro adjusting the focus, selecting only the sharpest images from each lens to compare.
350mm vs 300 Comparison 1
The following two images I shot from around 10m away. Both lenses were shot at their maximum focal range and apertures. So the E 70-350 was shot at 350mm f/6.3 and the FE 70-300 was shot at 300mm f/5.6.
Here’s a 100% crop and a side-by-side to make the comparison a little easier for you.
It’s extremely close but the FE 70-300 appears to be just a tiny little bit sharper to my eyes, what do you think?
350mm vs 300 Comparison 2
The following two images I also shot from around 10m away. However this time I stopped the aperture down one stop. So the E 70-350 was shot at 350mm f/7.1 and the FE 70-300 was shot at 300mm f/6.3.
Here’s a 100% crop and a side-by-side comparison.
Stepping both lenses down one stop improves the sharpness and now it’s not possible to see any difference between the two. The E 70-350 appears to benefit more than the FE 70-300 does from stopping down.
In this comparison I’m only concerned with the central sharpness and as you can hopefully see, both lenses are a little bit soft when shooting at their respective maximum apertures. Stepping each lens down just one stop increases the central sharpness to a much more pleasing level.
I will be adding further comparisons at a range of different focal lengths and distances very soon, including comparisons with the FE 70-300 shot on the Sony a7 III full-frame body.
Autofocus Test with Frank
In the following video featuring my dog Frank I do a simple autofocus comparison and keeper test between the Sony E 70-350 F4.5-6.3 G lens and the FE 70-300 F4.5-5.6 G lens.
Autofocus Test Results
Sony E 70-350
Shots Taken (in focus zone): 102
Out of Focus: 12 (12%)
Slightly Soft Focus: 38 (37%)
Critically Sharp Focus: 52 (51%)
Keeper Rate: 88% (including slightly soft)
Sony FE 70-300
Shots Taken (in focus zone): 83
Out of Focus: 9 (11%)
Slightly Soft Focus: 28 (34%)
Critically Sharp Focus: 46 (55%)
Keeper Rate: 89% (including slightly soft)
You can see sample images from this test in the sample gallery below.
|Lens Specifications||Sony E 70-350 F4.5-6.3 G OSS||Sony FE 70-300 F4.5-5.6 G OSS|
|Lens Mount:||Sony E-Mount||Sony E-Mount|
|Format:||APS-C||35mm full frame|
|Focal Length (mm):||70-350||70-300|
|35mm Equivalent Focal Length (APS-C):||105-525||105-450 mm|
|Focus Motors:||XD linear motor||Linear focus motor|
|Lens Groups / Elements:||13-19||13-16|
|Angle of View (35mm):||N/A||34°–8°10′|
|Angle of View (APS-C):||22°-4°40′||23°–5°20′|
|Minimum Focus Distance:||1.1-1.5 m (3.61-4.93 ft)||0.9 m (2.96 ft)|
|Maximum Magnification Ratio (x):||0.23||0.31|
|Filter Diameter (mm):||67||72|
|Image Stabilization (OSS):||Yes||Yes|
|Focus Limiter:||No||Yes (full / infinity-3m)|
|Zoom System:||Manual External||Manual External|
|Teleconverter Compatibility x1.4:||No||No|
|Teleconverter Compatibility x2.0:||No||No|
|Diameter (mm):||77mm (3-1/8 in.)||84mm (5-3/4 in.)|
|Length (mm):||142mm (5-5/8 in.)||143.5mm (5-3/4 in.)|
|Weight:||625g (22.1 oz.)||854g (30.2 oz.)|
|Press Release Date:||August 28, 2019||Mar 29, 2016|
|Price (MRRP):||$998.00 / £829.00||$1,273.00 / £1,079.00|
Let’s take a closer look at some of the more interesting specs here.
Focal Length and Aperture
The Sony E 70-350 G has a focal length of 70mm to 350mm and a variable aperture of f/4.5 – 6.3. From 70mm to 82mm it’s f/4.5, 83mm to 113mm it’s f/5, 114mm to 199mm it’s f/5.6, and 200mm to 350mm is f/6.3.
The Sony FE 70-300 G has a focal length of 70mm to 300mm and a variable aperture of f/4.5 – 5.6. From 70mm to 82mm it’s f/4.5, 83mm to 153mm it’s f/5, 154mm to 300mm it’s f/5.6.
The E 70-350 G features the XD (extreme dynamic) Linear Motor that can be found in the more expensive FE 135mm F1.8 GM lens along with the FE 400mm F2.8 GM and 600mm F4 GM lenses. It’s the first time ever that this focus motor has been included in an APS-C lens. The XD (extreme dynamic) Linear Motor has been developed to deliver higher thrust and efficiency than previous types in order to make the most of the rapidly evolving speed performance of current and future camera bodies.
The FE 70-300 G features the older linear focus motors, so in theory the 70-350 should be the faster lens when it comes to focussing but we’ll have to wait to see if this is the case.
Both lenses feature external zoom designs and the lens barrels extend as you zoom. There is a lock switch to prevent zoom creep when set to the shortest and most compact focal length of 70mm.
Size and Weight
The E 70-350mm measures 142mm in length; the diameter is 77mm and it weights 625g without the lens hood attached. The FE 70-300 G is 143.5mm in length, has a diameter of 84mm, and weighs 854g without the lens hood, making the 70-300 around 229g heavier.
The E 70-350mm features 7 circular aperture blades, whereas the FE 70-300 G has 9 circular aperture blades. This should mean that the FE 70-300 is capable of producing slightly smoother bokeh.
Neither lens supports the Sony 1.4x or the 2x teleconverters and they will also not physically fit.
Minimum Focus Distance
The minimum focus distance of the E 70-350mm is variable from 1.1-1.5 m (3.61-4.93 ft) depending on your focal length. The FE 70-300 on the other hand has a fixed minimum focus distance of just 0.9 m (2.96 ft).
Image Stabilization (OSS)
Both lenses feature optical image Stabilisation (OSS) but neither offer a Mode 2 for panning which can be found on lenses like the FE 70-200 F4 and the FE 100-400 F4.5-5.6 GM.
Range Focus Limiter
The E 70-350mm unfortunately does not include a focus range limiter switch on the lens body. The FE 70-300 G does include a limiter switch that allows you to select between full range or infinity to 3 meters.
The Sony E 70-350mm has a RRP of $998.00 / £829.00 and the Sony FE 70-300 G has a RRP of $1,273.00 / £1,079.00, making the FE 70-300mm around $275.00 / £250.00 more expensive.
I promise to include some none dog shots very soon! 🙂
Sony E 70-350 Sample Photos
Sony FE 70-300 Sample Photos
Still to Come
I’ll be adding sharpness comparisons, bokeh, color rendition, flare control, chromatic aberrations, stabilization, and minimum focus distance.
Please do let me know in the comments below if you’d like to see a specific comparison, or have a suggestion as to how I can improve my comparisons here.
If you are not already a member of one of the Sony Alpha Facebook Groups that I run then please do consider joining one of the groups. There are many groups including: landscape, portrait, wildlife, sports, street, video, a6400, a7III, a9 and a7r IV. Hopefully you’ll find one that you like the most!
* E 70-350mm F4.5-6.3 G OSS Pre-Orders
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