Sony 70-350 Vs 100-400: Unleashing the Power

Hey everyone, today I want to dive deep into a comparison that many photographers have been curious about: the Sony 70-350mm vs 100-400mm lenses. As someone who’s spent years behind the camera, capturing everything from wildlife in the Serengeti to sports action in packed stadiums, I’ve had the chance to use both of these lenses extensively. In this article, I’ll share my insights to help you decide which one might be the best fit for your photography needs. Whether you’re shooting with an APS-C or full-frame Sony camera, understanding the strengths and weaknesses of these lenses can make a big difference in your work.

Photography is all about having the right tool for the job, and these two lenses represent Sony’s commitment to providing high-quality options for different needs. The Sony E 70-350mm F4.5-6.3 G OSS is a favorite among APS-C users for its versatility and portability, while the Sony FE 100-400mm F4.5-5.6 GM OSS is a powerhouse for full-frame shooters who demand professional-grade performance. Let’s get started with a detailed comparison to help you choose the right lens for your next shoot.

Sony 70-350 Vs 100-400 Comparison

Specifications and Size Comparison

Let’s kick things off with the specifications. Here’s a comparison table to give you a clear overview:

Feature	Sony E 70-350mm F4.5-6.3 G OSS (APS-C)	Sony FE 100-400mm F4.5-5.6 GM OSS (Full-Frame)
Mount	Sony E (APS-C)	Sony FE (Full-Frame)
Focal Length	70-350mm (105-525mm full-frame equiv.)	100-400mm
Aperture	f/4.5-6.3	f/4.5-5.6
Minimum Focus Distance	1.1m (3.61 ft)	1.2m (3.94 ft)
Maximum Magnification	0.23x	0.25x
Weight	625g	1,465g
Image Stabilization	Yes (OSS)	Yes (OSS)
Dimensions	77mm x 130mm	88.5mm x 295mm
Filter Thread	67mm	82mm
Lens Elements	19 elements, 13 groups	22 elements, 16 groups

The Sony 70-350mm is designed for APS-C cameras, offering a focal range of 70-350mm, which translates to 105-525mm on a full-frame sensor due to the 1.5x crop factor. This makes it incredibly versatile for subjects like portraits, landscapes, and distant wildlife. Its lightweight design at 625g and compact dimensions make it a go-to for travel and handheld shooting. The Sony 100-400mm, built for full-frame cameras, provides a 100-400mm range, ideal for professional wildlife and sports photography. It’s heavier at 1,465g and larger, but its robust build includes weather sealing and a tripod collar, catering to demanding conditions.

The aperture difference is worth noting: the 70-350mm ranges from f/4.5 to f/6.3, while the 100-400mm goes from f/4.5 to f/5.6. At their longest focal lengths, the 100-400mm’s f/5.6 aperture lets in more light than the 70-350mm’s f/6.3, which can be crucial for low-light shooting or achieving a shallower depth of field. Both lenses feature Optical SteadyShot (OSS) for stable handheld shots, but their intended camera systems set them apart.

Focal Range and Zoom Capability

The focal range is where these lenses shine in different ways. The Sony 70-350mm offers a 70-350mm range on APS-C cameras, equivalent to 105-525mm on full-frame. This 5x zoom ratio (350/70) makes it incredibly versatile. During a trip to Yellowstone, I used it on my Sony A6600 to capture wide-angle landscapes at 70mm and zoom in on distant elk at 350mm. The reach was impressive, allowing me to frame subjects creatively without swapping lenses.

The Sony 100-400mm, designed for full-frame cameras, covers a 100-400mm range with a 4x zoom ratio (400/100). It’s perfect for sports, wildlife, and action photography where you need to isolate distant subjects. On an APS-C camera, it becomes a 150-600mm equivalent, offering even more reach, though you’re using a full-frame lens on a cropped sensor, which may not fully utilize its optics. I used it on my Sony A7R IV during a birdwatching trip, capturing eagles in flight at 400mm with stunning detail. The 70-350mm’s longer equivalent reach (525mm) gives APS-C users an edge for distant subjects, while the 100-400mm’s native range suits full-frame shooters needing professional-grade performance.

Both lenses are versatile, but the 70-350mm’s wider starting point (70mm) makes it more flexible for varied compositions, while the 100-400mm’s longer telephoto end excels for professional applications requiring precision.

Autofocus Performance

Autofocus is critical for fast-moving subjects, and both lenses deliver impressive results. The Sony 70-350mm uses an XD linear motor, which I’ve found to be fast, precise, and quiet. During a soccer game, it locked onto players quickly, even in low light, with a minimum focus distance of 1.1m (3.61 ft) allowing for closer shots when needed. It’s reliable for both stills and video, making it a great all-around choice for dynamic scenes.

The Sony 100-400mm, as a G Master lens, features a double linear motor and Direct Drive SSM (DDSSM) system, ensuring rapid response and tenacious tracking. I tested it at a bird sanctuary, and it tracked flying eagles with remarkable accuracy at 400mm. Its minimum focus distance of 1.2m (3.94 ft) is slightly longer but still versatile. The 100-400mm’s autofocus is slightly faster and more robust, especially on high-end full-frame bodies like the Sony A9, making it ideal for professional wildlife and sports photography.

Both lenses handle fast-paced action well, but the 100-400mm’s advanced system gives it an edge in demanding scenarios where split-second focus is crucial.

Image Quality and Sharpness

When it comes to image quality, both lenses deliver exceptional results, as expected from Sony’s G series. The Sony 70-350mm produces sharp, detailed photos with vibrant colors and accurate contrast. I photographed a fox in a forest with my A6600, and the fur details were crisp, with pleasing bokeh thanks to its 7-blade circular aperture. The lens’s one aspherical element and three extra-low dispersion (ED) elements minimize aberrations, ensuring clarity across the frame. Even at 350mm, the sharpness holds up well, though it’s not quite as razor-sharp as some full-frame lenses.

The Sony 100-400mm, being a G Master lens, offers outstanding sharpness and minimal distortion throughout its range. During a shoot with my A7R IV, I captured a bald eagle in flight, and the feather details were breathtaking, even when zoomed in. Its 22 elements, including one Super ED and two ED elements, reduce chromatic aberration, and the Nano AR coating minimizes flare and ghosting. The bokeh is smooth, with rounded highlights that make subjects pop against blurred backgrounds. According to reviews from Photography Life, the 100-400mm excels in resolving fine details, especially at longer focal lengths.

While both lenses are excellent, the 100-400mm’s superior optics give it a slight edge in sharpness and low-light performance, particularly at f/5.6 compared to the 70-350mm’s f/6.3. However, for most photographers, the 70-350mm’s performance is more than sufficient, especially given its lighter weight and versatility.

Handling and Ergonomics

Handling is where these lenses differ significantly. The Sony 70-350mm is a dream for portability, weighing just 625g and measuring 77mm x 130mm. I carried it all day during a hike without fatigue, and its smooth zoom ring and well-placed focus ring made adjustments effortless. It features a focus hold button and focus range limiter, enhancing usability for wildlife photography. Its dust and moisture resistance is adequate for casual outdoor use, but it’s not as robust as professional lenses.

The Sony 100-400mm, at 1,465g and 88.5mm x 295mm, is noticeably heavier and larger, but its build quality is exceptional. It’s weather-sealed with a fluorine coating on the front element, making it ideal for harsh conditions like rain or dust. During a stormy shoot, I trusted it to perform flawlessly. The wide zoom ring and responsive focus ring are glove-friendly, and the included tripod collar is essential for long telephoto shots. It also has three focus hold buttons and a focus limiter switch, catering to professional needs. The zoom torque adjustment ring, as noted by The Digital Picture, allows you to customize the zoom feel, which is great for fast-paced shooting.

The 70-350mm is perfect for photographers who prioritize portability, while the 100-400mm suits those needing durability and advanced features in challenging environments.

Build Quality and Durability

Build quality is a key differentiator. The Sony 70-350mm has a solid build with dust and moisture resistance, making it suitable for casual outdoor use. I’ve used it in light rain without issues, but it’s not designed for extreme conditions. Its plastic and metal construction feels sturdy, but it lacks the premium feel of higher-end lenses.

The Sony 100-400mm, part of the G Master series, is built for professional use with extensive weather sealing. It can withstand harsh conditions like rain, snow, or dust, and its fluorine-coated front element repels water and makes cleaning easier. During a shoot in a dusty desert, I was confident in its durability. According to Dustin Abbott, the 100-400mm’s robust construction makes it a reliable choice for outdoor photographers. If you often work in challenging environments, the 100-400mm’s build quality offers peace of mind, while the 70-350mm is sufficient for less demanding conditions.

Lens Hood and Filters

Lens hoods and filters can significantly impact your photography. The Sony 70-350mm comes with a petal-shaped lens hood (ALC-SH152) that reduces flare and protects the front element. Its 67mm filter thread is standard, making it easy to use circular polarizers or UV filters. However, its retractable design means you need to be cautious when attaching filters, as the lens barrel extends when zoomed in.

The Sony 100-400mm includes a petal-shaped lens hood (ALC-SH153) and has an 82mm filter thread, which is larger and may require more expensive filters. The hood is removable and reversible for storage, which is convenient. Both lenses benefit from their hoods, especially when shooting into the sun, as they help maintain contrast and minimize flare. The 100-400mm’s larger front element makes filters pricier, but they’re essential for protecting the lens in rugged environments.

Tripod Compatibility

Tripod compatibility is crucial for telephoto lenses, especially at longer focal lengths where camera shake is more pronounced. The Sony 100-400mm comes with a removable tripod collar, which is essential for balancing the lens on a tripod or gimbal head. This feature makes it easier to stabilize the lens for long exposures or when tracking moving subjects. The collar can be rotated for vertical or horizontal orientation, which is a big plus for wildlife and sports photography.

The Sony 70-350mm does not include a tripod collar, but you can purchase one separately. Its lighter weight (625g) makes it easier to handhold, but for extended tripod use, a collar is recommended. During a long-exposure landscape shoot, I found the 70-350mm manageable without a collar, but the 100-400mm’s included collar was a game-changer for stability.

Price and Value

Price is a significant factor when choosing between these lenses. The Sony 70-350mm offers excellent value for APS-C users, providing a versatile focal range and solid performance at a more affordable price point. It’s a great choice for enthusiasts and semi-professionals who need a reliable telephoto lens without a hefty investment.

The Sony 100-400mm, being a G Master lens, is pricier but worth it for full-frame users or professionals. Its advanced autofocus, weather sealing, and exceptional image quality make it a workhorse for demanding applications like wildlife, sports, and photojournalism. According to B&H Photo, the 100-400mm is designed for outstanding resolution and sharpness, justifying its cost for serious photographers. If budget is a concern, the 70-350mm offers great performance for the price, while the 100-400mm is an investment in professional-grade quality.

Decision-Making Section

When deciding between the Sony 70-350 vs 100-400, consider your camera system first. If you’re shooting with an APS-C camera like the Sony A6600, the 70-350mm is the clear choice. Its compact size, versatile 70-350mm range (105-525mm equivalent), and excellent performance make it ideal for travel, wildlife, and sports photography without weighing you down. It’s also more budget-friendly, making it accessible for enthusiasts.

For full-frame users with cameras like the Sony A7R IV or A9, the 100-400mm is the go-to lens. Its 100-400mm range, superior autofocus, and robust build quality make it perfect for professional applications, especially in demanding conditions. While you can use the 100-400mm on an APS-C camera (yielding a 150-600mm equivalent), you’re paying for full-frame features that may not be fully utilized. Conversely, the 70-350mm isn’t suitable for full-frame cameras, as it may vignette and not cover the full sensor.

Consider your shooting style: if portability and versatility are key, go for the 70-350mm on APS-C. If you need top-tier performance and durability on a full-frame body, the 100-400mm is worth the investment. Both lenses are excellent, but they serve different purposes based on your needs.

Conclusion

In conclusion, both the Sony 70-350 and 100-400 lenses are excellent choices, but they cater to different needs. If you’re shooting with an APS-C camera and need a versatile telephoto lens that’s lightweight and easy to carry, the Sony 70-350 is a fantastic option. It offers a wide range of focal lengths and performs well in various conditions. On the other hand, if you’re using a full-frame camera and require the ultimate in image quality, autofocus speed, and durability for professional work, the Sony 100-400 is unparalleled. Ultimately, the choice depends on your specific requirements, budget, and the type of photography you do most often.

FAQ

Here are some frequently asked questions to help clarify any doubts:

1. Can I use the Sony 70-350mm on a full-frame camera?
   No, the 70-350mm is designed for APS-C cameras and may cause vignetting on full-frame bodies, as it doesn’t cover the full sensor.
2. Can I use the Sony 100-400mm on an APS-C camera?
   Yes, but it will crop the image, giving a 150-600mm equivalent focal length. This increases reach but may not fully utilize the lens’s capabilities.
3. Which lens is better for bird photography?
   Both are excellent. The 70-350mm on APS-C offers more reach (525mm equivalent), ideal for smaller birds. The 100-400mm on full-frame provides superior image quality for larger subjects or professional work.
4. How do these lenses perform in low light?
   The 100-400mm’s f/5.6 aperture at 400mm allows better low-light performance than the 70-350mm’s f/6.3 at 350mm. Both benefit from Optical SteadyShot for sharper images in dim conditions.
5. What is the weight difference, and how does it affect portability?
   The 70-350mm weighs 625g, making it highly portable for travel or hiking. The 100-400mm, at 1,465g, is heavier but manageable with a tripod or gimbal.
6. Do these lenses come with a tripod collar?
   The 100-400mm includes a removable tripod collar for stability. The 70-350mm does not, but you can purchase one separately.
7. Are these lenses weather-sealed?
   Both have weather resistance, but the 100-400mm’s extensive sealing and fluorine coating make it better suited for harsh conditions.
8. Can I use filters with these lenses?
   Yes, the 70-350mm uses a 67mm filter thread, and the 100-400mm uses an 82mm thread. Larger filters for the 100-400mm may be pricier.
9. What is the difference between Mode 1 and Mode 2 on the 100-400mm?
   Mode 1 keeps image stabilization always active, while Mode 2 activates it when the shutter button is half-pressed, ideal for panning.
10. Which lens is better for travel photography?
    The 70-350mm’s lightweight design makes it ideal for travel, while the 100-400mm’s bulk is better suited for professional shoots where gear is transported.

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