Tamron 35-150mm f/2-2.8 Di III VXD:
* Pros:
* Incredible Zoom Range: 35-150mm is a very versatile range. It allows you to go from wider shots of the ceremony or reception hall to tighter portraits and candids without changing lenses. This is a huge time-saver and helps you capture fleeting moments.
* Fast Aperture (f/2-2.8): This allows for excellent low-light performance, beautiful bokeh (blurred background), and the ability to keep your ISO lower in challenging lighting conditions (common in churches and reception venues). The f/2 at 35mm is especially valuable.
* Sharpness: This lens is known for being very sharp throughout its zoom range.
* Excellent Autofocus: The VXD autofocus motor is fast, accurate, and quiet, crucial for capturing fast-moving subjects like the bride walking down the aisle or the first dance.
* Build Quality: Tamron has significantly improved build quality in recent years. This lens feels robust and professional.
* Image Stabilization (VC - Vibration Compensation): While not as effective as some in-body stabilization systems, it can still help you get sharper images in lower light, especially when shooting at the longer end of the zoom range.
* Cons:
* Size and Weight: This is a big and heavy lens. This can be tiring to carry around for an entire wedding day.
* Price: It's a premium lens and therefore more expensive.
* No true wide angle: 35mm might be tight in some small spaces if you're looking for a very wide shot.
* Not ideal for group shots in tight spaces: 35mm might be too zoomed in for larger groups in a cramped room.
Hypothetical Sigma 28-105mm f/2.8 or f/2:
* Pros (assuming fast aperture):
* Smaller and Lighter: Likely significantly smaller and lighter than the Tamron, making it more comfortable to carry for extended periods.
* Potentially Faster Aperture (especially if f/2): An f/2 aperture could offer even better low-light performance and shallower depth of field than the Tamron. This is very useful for portraits.
* Potentially Lower Price: If a Sigma 28-105mm f/2.8 or f/2 lens existed (it doesn't at this moment, but let's imagine it), it might be priced lower than the Tamron, depending on its build quality and features.
* A little wider: 28mm gives you more of the enviornment, especially in tight spots.
* Cons (assuming fast aperture):
* Limited Zoom Range: The 28-105mm range is less versatile than the Tamron's 35-150mm. You'll likely need to change lenses more often, potentially missing shots.
* Might lack image stabilization: Sigma lenses don't always come with image stabilization (OS).
* Image quality: The image quality would need to be excellent throughout the zoom range, which is not a guarantee.
Which is Best for Weddings?
The Tamron 35-150mm is generally the better choice for wedding photography. Here's why:
* Versatility: The wider zoom range is critical for capturing a variety of shots throughout the day without constantly switching lenses. This allows you to be reactive and capture fleeting moments.
* Low-Light Performance: The f/2-2.8 aperture is excellent for low-light environments, which are common in wedding venues.
* Image Quality: The Tamron is known for its sharpness, rendering, and overall image quality.
* Autofocus Performance: Fast and accurate autofocus is essential for capturing moving subjects during the ceremony and reception.
* One Lens Solution: Many wedding photographers like using a single, versatile lens like this to minimize lens changes and reduce the amount of gear they need to carry.
The hypothetical Sigma 28-105mm *could* be considered if:
* You absolutely prioritize weight and size: If you have back problems or simply prefer a lighter setup, the Sigma might be appealing.
* You frequently shoot in very low light and the f/2 aperture is a significant advantage for you.
* You are happy to carry a second lens with you to fill in the longer focal range.
* The price difference is significant and fits your budget better.
* You shoot in primarily well lit venues where image stabalization isn't needed.
In conclusion:
While the Sigma 28-105mm *sounded* good in theory, the Tamron 35-150mm is the clear winner for most wedding photographers due to its versatility, excellent image quality, fast autofocus, and low-light performance. The weight and size are a trade-off for the benefits it provides. Consider it a one lens solution for the whole day.