The SCH25/35/50 is the flagship of the SCH line of budget-conscious thermal
riflescopes that provides all of the performance of higher performance
systems but at a fraction of the price. The SCH25/35/50 achieves this by using
polymers on some control surfaces but maintains a full aluminum chassis
for durability. Because of the intelligent use of polymers, the SCH25/35/50
is lightweight and compact making it easier to mount, and providing an
overall lighter platform. Featuring a 50mm lens, the SCH25/35/50 provides the
greatest detection ranges and highest native magnification of 2.91x.
The SCH25/35/50 features 8 different reticles, stadiametric rangefinder,
multiple thermal modes, on-board photo/video recording, Wifi
connectivity, built-in accelerometer, and compass.
WARRANTY INFO: Standard 3-year warranty from Infiray Canada
Specifications SCH25
Resolution |
640 x 512 |
Core Resolution |
12um |
NETD |
<= 40mK |
Frame Rate |
50Hz |
Lens System |
25mm F/1.0 |
Optical Magnification |
1.46
|
Field of View |
17.6x13.2 degrees
|
Magnification (digital) |
1x; 2x; 4x |
Display |
1024 x 768 OLED |
Detection Range |
1.3km |
Eye Relief |
48mm |
Battery |
2x CR123a |
Dimensions (mm) |
216x61x61 |
Weight |
570g |
Specifications SCH35
Resolution |
640 x 512 |
Core Resolution |
12um |
NETD |
<= 40mK |
Frame Rate |
50Hz |
Lens System |
35mm F/1.1 |
Optical Magnification |
1.96x |
Field of View |
8.8 x 6.6 |
Magnification (digital) |
1x; 2x; 4x |
Display |
1024 x 768 OLED |
Detection Range |
1.8km |
Eye Relief |
48mm |
Battery |
2x CR123a |
Dimensions (mm) |
216x61x61 |
Weight |
570g |
Specifications SCH50
Resolution |
640 x 512 |
Core Resolution |
12um |
NETD |
<= 40mK |
Frame Rate |
50Hz |
Lens System |
50mm F/1.1 |
Optical Magnification |
2.91x |
Field of View |
8.8 x 6.6 |
Magnification (digital) |
1x; 2x; 4x |
Display |
1024 x 768 OLED |
Detection Range |
1.8km |
Eye Relief |
48mm |
Battery |
2x CR123a (~3.5 hours of battery life) |
Dimensions (mm) |
216x61x61 |
Weight |
510g (without batteries) |
The IRay Saim SCH25, SCH35, and SCH50 are all thermal imaging scopes with similar core features but differ mainly in lens size, detection range, and field of view. These differences affect their performance in various hunting or tactical scenarios. Here's a breakdown of the key distinctions between the three models:
1. Lens Size (Objective Lens)
- SCH25: 25mm lens
- SCH35: 35mm lens
- SCH50: 50mm lens
The lens size impacts how much infrared radiation (heat) the scope can gather, influencing detection range and image detail. Larger lenses gather more heat information, improving detection at greater distances.
2. Detection Range
- SCH25: Detects human-sized targets up to 1,290 meters.
- SCH35: Detects targets up to 1,810 meters.
- SCH50: Detects targets up to 2,530 meters.
The SCH50 has the longest detection range due to its larger lens, making it ideal for long-range target identification, while the SCH25 is better suited for closer-range engagements.
3. Field of View (FOV)
- SCH25: Wider FOV at 10.5° x 7.9°.
- SCH35: Narrower FOV at 7.5° x 5.6°.
- SCH50: Even narrower FOV at 5.3° x 4.0°.
A wider FOV (like on the SCH25) allows for better situational awareness and tracking of moving targets at shorter ranges, while a narrower FOV (like on the SCH50) provides more precise focus on distant targets.
4. Magnification
- SCH25: 1.2x to 9.6x (optical magnification with digital zoom).
- SCH35: 1.6x to 12.8x.
- SCH50: 2x to 16x.
The SCH50 has the highest magnification, providing a better view of distant objects, whereas the SCH25 offers a wider, lower magnification suited for closer ranges.
5. Weight and Size
- SCH25: Lighter and more compact due to its smaller lens.
- SCH35: Moderate weight.
- SCH50: Heaviest of the three, due to the larger lens and longer detection range.
6. Best Use Cases
- SCH25: Ideal for shorter-range hunting and tracking in dense environments, where wide FOV is more important than range.
- SCH35: A balance between range and FOV, suitable for medium-range engagements.
- SCH50: Best for long-range hunting or tactical situations, where detecting and identifying targets at a distance is critical.
Summary
- SCH25: Best for short-range use, wider FOV, and lighter weight.
- SCH35: A middle-ground option, offering a balance between detection range and FOV.
- SCH50: Best for long-range detection with higher magnification but a narrower FOV and heavier build.
The choice between these models depends on the intended use—SCH25 for closer-range and quicker target acquisition, SCH50 for long-range precision, and SCH35 as a versatile middle option.