IRix 11mm F/4 FIRefly Lens For Pentax K

IRix 11mm F/4 FIRefly Lens For Pentax K The IRix 11mm F/4.0 Is An ULtra-Wide Rectilinear Lens And Is Compatible With Both Full Frame And Aps-C Canon, Nikon And Pentax K Cameras. Whether You'Re A Professional Photographer, Looking For A Lens For Your Next Shoot, Or A Beginner Looking To Expand Your Lens Set, This One Is For You.The IRix 11mm F/4.0 Is An ULtra-Wide-Angle Rectilinear Lens Created For Your Full Frame (35mm ) Camera, And Comes In Nikon F, Canon Ef, And Pentax K Mounts. It Opens You To An EntIRely New World Of Photography. Thanks To A 126 Degree Field Of View, You'Re Able To Capture Incredibly Captivating Images And The ExCEllent Optics Ensure Sharp, DetaiLED Images. Creativity, Ideas, And The Effort That'S Put Into The Final Image Is Nothing Without The Right Lens. Thanks To Many Years Of ExperienCE In Optical Design, Our IRix Lenses Are Characterized By TheIR ExCEllent Resolution, Minimal Distortion (3.13%), And Almost No Vignetting. The IRix 11mm F/4.0 Lens Consists Of 16 Elements Arranged In 10 Groups: 4 Refractive Elements, 2 Ed Elements And 3 Aspherical Elements. The Focus DistanCE Is Only 28Cm, Which In Combination With Its F/4.0 F-Stop And 9 Rounded Aperture Blades, Makes This Lens Stand Out With Extremely Smooth Bokeh From An Incredible Perspective. Whether You'Re Traversing The Hot Sands Of The Sahara Or The Frigid Expanse Of Antarctica - IRix Lenses Never Back Down From Any Challenge. The Sealing System Has Been Designed To Protect The Inside Of The Lens From Moisture, Dust, And Sand. Equally Important, The Lens Does Not Change Its Dimensions During Focus PULling, Eliminating The Risk Of DIRt Particles Getting Swept Into The Internal Structure. These Properties Not Only Allow You To Work In DemaNDIng CoNDItions, But Also Guarantee The Cleanliness Of The Camera'S MIRror Chamber Sensor. The IRix 11mm F/4.0 Comes In Two Versions: FIRefly And Blackstone. FIRefly - Lightweight Composite Construction, With An Embossed Rubber Focus Ring, Allowing For Smooth And Precise Focusing. Included With The Lens Is A Soft Pouch. Blackstone - ReinforCEd Full-Metal Construction. All Lens Markings Are Engraved And FilLED With A Uv-Reactive Paint Enabling Easy Focusing In Dark Enviornments. Included With The Lens Is A Hard Case. The IRix 11mm F/4.0 Has A ModULe Allowing You To Control The Lens' Iris DIRectly From The Camera. This Means PopULar Semi-Automatic Modes (Pasm), And Data Recording In Exif Format Are Available. The Use Of Electronics Also Enables The Lens To Be Equipped With A Focus ConfIRmation System - The Camera Will ConfIRm The Proper Focus DistanCE (Either In The Form Of An Icon In The Viewfinder Or Sound), Every Time You Set The Focus Correctly - It'S Really Easy! IRix Lenses Have Correction Profiles That Are Pre-Loaded And Readable By Software (Such As Adobe Lightroom And Adobe Photoshop). This Will Make Your Shooting ExperienCE Even More Enjoyable. The IRix 11mm F/4.0 Has A Small Indentation When Your Focus Ring Reaches Infinity - This Enables Precise, Easy, And Quick Focusing. You Will Feel The Exact Moment When Your Lens Sets To Infinity While Focusing. This Is Extremely UsefUL When Shooting In DifficULt Lighting CoNDItions (I.E. At Night). The Focus Lock Ring Allows You To Lock The Focus Ring In A Specific Position. This Is Especially UsefUL When You Want To Maintain A Specific DistanCE To The Subject (Zone-Focusing), Or When You Want To Maintain Perfect Focus On Infinity During Landscape Or Astrophotography. The Rear Gel Filter Slot Allows The Use Of Gray Nd Filters Mounted On The Rear Of The Lens. This Is A Unique Feature Of The IRix 15mm F/2.4 And IRix 11mm F/4.0 Lenses. Due To The Specifics Of Focus Detection In Dslr Cameras Based On Phase Detection, It May Sometimes Happen That The Lens Needs To Be SynCEd With The Camera. Thanks To This Special Window, You Can Easily Calibrate The Lens At Home Using Basic Tools And In Just 5 Minutes. Fast, Simple And Effective!