{"product_id":"formatt-hitech-firecrest-nd-39mm-nd-1-2-4stops-filter","title":"Formatt Hitech Firecrest ND 39mm ND 1.2 (4stops) Filter","description":"\u003ch2\u003eFormatt Hitech Firecrest ND 39mm ND 1.2 (4stops) Filter | Slow the shutter by four stops\u003c\/h2\u003e\n\u003cp\u003eThe defining choice here is the 39mm diameter: it gives this filter a specific size for lenses with a matching filter thread. Its ND 1.2 rating reduces the light reaching the camera by four stops, making it useful when you want a slower shutter speed without changing the scene’s lighting. That can help show movement in water or clouds, or let you use a wider aperture in bright conditions. It suits photographers whose lens takes a 39mm filter and who want a fixed, four-stop reduction rather than a variable adjustment. For example, a metered exposure of 1\/30 sec becomes roughly 1\/2 sec when you keep the aperture and ISO unchanged. It’s a straightforward way to make that exposure shift; the key is planning around the filter’s fixed strength.\u003c\/p\u003e\n\u003cdiv class=\"specialist-note\"\u003e\n\u003ch3\u003eSpecialist Note\u003c\/h3\u003e\n\u003cp\u003eLate-afternoon light runs across a canal, and a four-stop reduction gives you room to let the water blur instead of freezing every ripple. If your meter calls for 1\/30 sec, keep the aperture and ISO where they are and the ND 1.2 takes you to about 1\/2 sec. The 39mm size matters just as much in practice: it’s for a lens with a matching 39mm filter thread, so check the marking on the lens before choosing it. I’d point this filter towards someone who wants deliberate slow-shutter work with that lens size. Its fixed four stops are a strong reduction; in dim light, you may need to open the aperture or raise ISO.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: Formatt Hitech\u003c\/li\u003e\n\u003cli\u003eSeries: Firecrest\u003c\/li\u003e\n\u003cli\u003eFilter type: ND filter\u003c\/li\u003e\n\u003cli\u003eFilter diameter: 39mm\u003c\/li\u003e\n\u003cli\u003eND rating: 1.2\u003c\/li\u003e\n\u003cli\u003eLight reduction: 4 stops\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Formatt Hitech","offers":[{"title":"Default Title","offer_id":57563698856276,"sku":"FH-FC39ND1.2","price":58.55,"currency_code":"EUR","in_stock":false}],"url":"https:\/\/www.htf-store.com\/nl\/products\/formatt-hitech-firecrest-nd-39mm-nd-1-2-4stops-filter","provider":"Hard to Find Camera Store","version":"1.0","type":"link"}