The Tasco 7-14×35 binoculars are a versatile optical device, suitable for a range of activities such as birdwatching, sports events, and general outdoor observation. Here are some key features and specifications of these binoculars:
Vintage Tasco Binoculars 7X-14X35 Key Features:
- Adjustable Magnification: The binoculars offer a variable zoom range from 7x to 14x, allowing you to zoom in on distant objects for a closer view.
- Objective Lens Diameter: With a 35mm objective lens, these binoculars can gather a reasonable amount of light, providing clear and bright images.
- Field of View: At lower magnification (7x), the field of view is wider, making it easier to locate and follow objects. As you increase the magnification, the field of view narrows.
Kenko Club Trino 25-150×50 Field 1° at 25x ZOOM binocular
- Porro Prism Design: Typically, this design offers good depth perception and a wide field of view.
- Coated Optics: Coated lenses enhance light transmission and reduce glare, improving image clarity and contrast.
- Focus Mechanism: Usually includes a central focus wheel for adjusting the focus of both barrels simultaneously and a diopter adjustment for fine-tuning the focus for individual eyes.
- Eye Relief: Eye relief refers to the distance you can hold the binoculars from your eyes while still seeing the full field of view. Longer eye relief is beneficial for eyeglass wearers.

Vintage Tasco Binoculars 7X-14X35 Specifications:
- Magnification: 7-14x
- Objective Lens Diameter: 35mm
- Prism Type: Porro
- Lens Coating: Multi-coated or fully coated (varies by model)
- Field of View at 1000 yards: Typically around 300 feet at 7x magnification (varies by model)
- Exit Pupil: Around 5mm at 7x magnification, decreasing as magnification increases
- Weight: Can vary, but generally in the range of 20-30 ounces
Usage Tips:
- Zoom Control: Use the zoom lever or knob to adjust the magnification smoothly from 7x to 14x.
- Focusing: Start with the central focus wheel to get a clear image, then use the diopter adjustment if necessary to fine-tune your vision.
- Stability: At higher magnifications, binoculars can be more challenging to hold steady. Using a tripod or resting your elbows on a stable surface can help.
- Care: Keep the lenses clean and free from dust and fingerprints. Use a soft, lint-free cloth and appropriate lens cleaning solution.
Applications:
- Birdwatching: The variable zoom is great for observing birds at different distances.
- Sports Events: Ideal for getting closer views of the action.
- Nature Observation: Suitable for watching wildlife and landscapes.
- Stargazing: Can be used for basic stargazing, although not as powerful as dedicated astronomical binoculars.
The Tasco 7-14×35 binoculars are a good choice for those looking for an affordable, versatile pair of binoculars with zoom capability.
