I'm soooo newbie; what the heck does TC mean?.
What's the context?.
Thanks Erik, here is the context:John.
That might depend on what type of budget and birds you're talkingabout. The basic mantra of most bird shooters is "More length! Morelength!" Some people here, such as Raymond Barlow, are big advocatesof the Nikon 200-400; but, you're talking $5000.00. Others recommendthe 300 f/2.8 with TC, but again, an expensive proposition...
Thanks Erik, here is the context:John.
That might depend on what type of budget and birds you're talkingabout. The basic mantra of most bird shooters is "More length! Morelength!" Some people here, such as Raymond Barlow, are big advocatesof the Nikon 200-400; but, you're talking $5000.00. Others recommendthe 300 f/2.8 with TC, but again, an expensive proposition..
Yep that indeed would be the context of a "teleconverter"..
They are available as 1.4X, 2X, or 3X..
IF you put the 2X on the 300mm f/f2.8 .... the result is 600mm at about f/5.6..
So notice that while the focal-length was doubled ... you lost lens speed, and thus need a longer shutter speed. (you also lost resolution).
So it is a CHEAP(er) entry towards a longer lens .... but not always practical because of the loss of light, and loss of resolution..
(not to mention the loss of "resolution" resulting from camera shake resulting from a longer shutter speed).
Thanks for reading .... JoePhoto.
( Do You Ever STOP to THINK and FORGET to START Again ??? )..
I can honestly say that I understood your answer so maybe I am learning something after all! I'm a paraglider too, soon to take up paramotoring.CheersJohn..
Corrections, additions are welcome:.
ACR : Adobe Camera RAWAD : Anomolous DispersionAF : Auto FocusAF-I : Nikon Auto-Focus lens with Integrated motorAF-S : Nikon Auto-Focus lens with Silent wave motorAI : Automatic IndexingAP : Aperture priorityAP : Amateur Photographer (magazine)APO : Apochromatic (Sigma)AR : Aspect Ratio (W/H)aRGB : Adobe RGBAS(S) : Anti Shake (System)Asph : AsphericalBF : back focusingBIF : Birds in flightBOG : Birds on groundBOP : Birds on polesBOW : Birds on waterBTW : by the wayC&C : Comments and critiquesCA : Chromatic AberrationCNX : Capture NX (Nikon Program)CoC : Circles of Confusion (commonly, "bokeh")CPL : Circular Polariser (also PL-CIR, and others depending on brand)CS3 : Creative Suite 3 (Adobe Software)DG : Digital GroupDOF : Depth of Fielddpi : dots per inchDR : Dynamic RangeDSLR : Digital Single Lens ReflexDX : Digital eXclusive (Nikon)EC : exposure compensationED : Extra low DispersionEF : Electro-Focus (Canon's designation for their auto focus lenses).
EF-S : Electro-Focus Short back focus (Canon; as EF but restricted to their 1.6x crop DSLRs))EOS : Electro-Optical System (Canon's auto focus system)EV : Exposure Value.
EXIF : Exchangeable Image File Format (commonly, "EXIF data," info about your pictures)FBF : First Black FrameFEC : flash exposure compensationFF : front focusingFL : focal lengthFOV : field of viewFX : Full frameHAND : Have A Nice DayHDR : High Dynamic RangeHSM : HyperSonic Motor (Sigma)IF : Internal FocusingIIRC : If I Recall CorrectlyIMO : In My Opinion (Also: IMHO where HIPTC : International Press Telecommunications Council.IQ : Image QualityIS : Image StabilizatoniTTL : intelligent Through The LensKM : Konica MinoltaL : Luxury (Canon)LBA : Lens Buying AddictionLD : Low DispersionLOL : laughing out loudMF : Manual focusMLU : mirror lock upMP : MegapixelsNAS : Nikon Acquisition SyndromeOOF : Out Of FocusOP : Original PosterOS : Optical Stabilizer (Sigma's equivalent of IS/VR)P&S : Point and ShootPMA : Photo Marketing AssociationPP : Post-Processing (on a computer)PPD : Pixwls per degree (pano resolution)ppi : pixels per inchPS : PhotoshopPSE : Photoshop ElementsRS : ReStyled lensRTM : Read The ManualRTFM : Read the "fantastic" manualSLR : Single Lens ReflexSP : Speed prioritysp? : SpellingSPI : Samples per inch (for a scanner)sRGB : A Standard Default Color Space for the InternetSSM : Super Sonic Motor (Minolta)SWM : Silent Wave Motor (Nikon)TC : TeleconverterTTL : Through The LensUD : Ultra low DispersionUSM : Unsharp Mask (PS)USM : Ultrasonic Motor (Canon)VR : Vibration Reduction (Nikon)..