Nikon COOLPIX S3100 Review | 108 Data compared

The Nikon COOLPIX S3100 (14 MP) and S2500 (12 MP) are compact, budget-friendly digital cameras that can be adapted for amateur underwater photography and snorkeling when paired with Nimar NIS3100 and NIS2500 Makrolon polycarbonate waterproof housings. These lightweight housings weigh under 300 grams, offer positive buoyancy to prevent sinking, and are waterproof down to 40 meters deep. The cameras excel in close-up macro photography, where the housing’s matte white front acts as an effective built-in flash diffuser, eliminating harsh shadows and accurately illuminating small underwater subjects like colorful nudibranchs. Additionally, the camera systems show strong performance in low-light environments by producing clean, usable images at higher ISO sensitivities ranging between 400 and 800 ISO. However, the review highlights several distinct limitations and design considerations for wide-angle shooting. A notable drawback is that the camera's internal flash loses significant power through both the water column and the plastic housing, making it insufficient for wide-angle underwater landscapes. To counteract this, users must rely on external slave flashes via fiber optic cables or utilize specific ambient light techniques like shooting upward toward the...

The review title, "Prima prova in mare per la lente autocostruita per riprese macro con la Nikon Coolpix S3100" (First sea trial for the self-built macro shooting lens with the Nikon Coolpix S3100) from pucciosan & GoPro world, details an underwater field test of a custom, do-it-yourself (DIY) macro lens conversion. The author adapted this custom lens modification specifically to enhance the close-up capabilities of the compact Nikon Coolpix S3100 camera when housed inside an underwater diving casing. Pros and Cons Analysis Pros: The primary advantage is the enhanced capability to capture high-magnification macro and close-up footage underwater using a very budget-friendly, entry-level compact camera. Building a custom lens provides a highly cost-effective alternative to expensive, professional underwater macro wet lenses. Wikipedia Cons: As a DIY optical build tested in actual sea conditions, a key disadvantage is the mechanical vulnerability and technical limitations of home-built underwater gear. Custom lens modifications are highly prone to trapping unwanted water droplets or air bubbles between elements. They also face a constant risk of structural failure or internal flooding under open-water diving pressure.

The Nimar NIS3100 and NIS2500 underwater housings are specifically tailored for the compact Nikon Coolpix S3100 and S2500 digital cameras, allowing beginners and snorkelers to explore underwater photography down to a depth of 40 metres. Constructed from Makrolon polycarbonate, the housings feature an opaque white front that acts as an effective built-in flash diffuser, and a completely transparent back for unobstructed LCD monitoring and visual moisture inspection. Key pros highlighted in the review include exceptional ergonomics that allow for easy button operation even when wearing thick neoprene gloves, an improved zoom lever mechanism, and a precise lateral safety latch system. Additionally, the housings possess positive buoyancy (weighing under 300 grams), ensuring they float if dropped during snorkeling, and they are built to comfortably accommodate Propagel moisture-absorbing packets to reliably prevent internal lens fogging. In terms of performance and expandability, the kit excels at close-up and macro photography, as the camera's internal flash coupled with the housing's front diffuser entirely eliminates harsh lens shadows. The cameras also handle single and permanent autofocus configurations effectively underwater. However, a notable con is the...

This review evaluates the underwater photography capabilities of the Nikon COOLPIX S3100 and S2500 compact digital cameras when paired with specialized Nimar waterproof housings (specifically the NIS3100 and NIS2500 models). The article highlights several key pros, starting with the exceptional ease of use and portability of these lightweight cameras, making them highly suited for amateur underwater photographers and beginners. It praises their macro photography performance, noting that the close proximity between the lens and slow-moving marine subjects minimizes water suspension, allowing the built-in flash to easily deliver clear, vibrant close-up shots. Additionally, the systems offer great expandability, as the Nimar housing can be mounted to an accessory bracket to support external strobes like the Fantasea Cool Flash Nano, Sea&Sea YS-110 Alfa, or INON Z240. This external flash setup significantly reduces backscatter—the annoying glare from particles illuminated directly in front of the lens—by angling the light source at 45 degrees. Conversely, the review implicitly notes several cons related to the technical limitations of relying solely on the stock cameras. Without an external flash, users face a major bottleneck because the water...