Let's play a game once more ... - Printable Version +- Opticallimits (https://forum.opticallimits.com) +-- Forum: Forums (https://forum.opticallimits.com/forumdisplay.php?fid=4) +--- Forum: Just Talk (https://forum.opticallimits.com/forumdisplay.php?fid=17) +--- Thread: Let's play a game once more ... (/showthread.php?tid=2191)

Let's play a game once more ... - Klaus - 10-02-2012 ... and have a look whether you learned something over the last years .... I've attached the MTFs of a lens. Which one and what do you see here ? This is not (really) a joke. Let's play a game once more ... - netrex - 10-02-2012 Not the SMC Pentax DA 50mm f/1.8? <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/tongue.gif' class='bbc_emoticon' alt='' /> Let's play a game once more ... - dave9t5 - 10-02-2012 [quote name='Klaus' timestamp='1349205448' post='20468'] ... and have a look whether you learned something over the last years .... I've attached the MTFs of a lens. Which one and what do you see here ? This is not (really) a joke. [/quote] Prime or zoom? My first thoughts were, in order: Sigma 30/1.4 Canon 28/1.8 Sigma 28/1.8 Sigma 24/1.8 Pentax FA43/1.9 Sony 16/2.8 But none really match, maybe the Canon 28/1.8 has the most similar characteristic with the wavy correction at the corners. Let's play a game once more ... - mst - 10-02-2012 Interesting. A pancake? -- Markus Let's play a game once more ... - Klaus - 10-02-2012 [quote name='Klaus' timestamp='1349205448' post='20468'] ... and have a look whether you learned something over the last years .... I've attached the MTFs of a lens. Which one and what do you see here ? This is not (really) a joke. [/quote] All wrong so far. Please look 'behind' the question. Let's play a game once more ... - popo - 10-02-2012 For fun I would say Canon 50mm f/1.0, but I doubt the centre resolution would be so high! Interesting action in the border/corner region there. Badly corrected spherical aberration? Let's play a game once more ... - mst - 10-02-2012 [quote name='Klaus' timestamp='1349208306' post='20472'] All wrong so far. Please look 'behind' the question. [/quote] Ah, ok. MTF not corrected for field curvature? Of a lens with strong FC? -- Markus Let's play a game once more ... - Klaus - 10-02-2012 [quote name='mst' timestamp='1349208577' post='20474'] Ah, ok. MTF not corrected for field curvature? Of a lens with strong FC? -- Markus [/quote] Yes Let's play a game once more ... - Klaus - 10-02-2012 [quote name='Klaus' timestamp='1349208634' post='20475'] Yes [/quote] And the lens is ? Let's play a game once more ... - mst - 10-02-2012 [quote name='Klaus' timestamp='1349210092' post='20476'] And the lens is ? [/quote] OEM? -- Markus