[missbirdphotos] Re: Birding on Saturday

I'm told that the BIGMA lenses don't autofocus on teleconverters - at least the 
Nikon mount versions don't. I only have an ancient fully manual TC, so when I 
put my BIMGA on it I lose any aperture control, since the BIMGA has no manual 
aperture ring. Of course, with a TC, I'd probably want to shoot wide open 
anyway.  I never even try it - I just use the lens alone and then crop the 
shot. 

Also, they are sharpest at 400mm but acceptably sharp at 500. 


________________________________
 From: Larry Pace <larrypace64@xxxxxxxxx>
To: "missbirdphotos@xxxxxxxxxxxxx" <missbirdphotos@xxxxxxxxxxxxx> 
Sent: Thursday, March 8, 2012 8:49 AM
Subject: [missbirdphotos] Re: Birding on Saturday
 

Several of you have mentioned the Bigma.  What  are your thoughts on pros and 
cons for this lens.  I think part of my problems have to do with lack of reach 
with the 100-400. particularly on the smallest subjects.  I have to crop way 
too much.  

I am aware that most problems related to quality photos are related to poor 
technique but equipment does matter especially in NATURE photography.

Does the Bigma allow autofocus when using tele-converters?

Larry


________________________________
 From: Frank Hensley <dr_frank_hensley@xxxxxxxxx>
To: "missbirdphotos@xxxxxxxxxxxxx" <missbirdphotos@xxxxxxxxxxxxx> 
Sent: Thursday, March 8, 2012 6:49 AM
Subject: [missbirdphotos] Re: Birding on Saturday
 

I plan to go! First day of Spring Break so I asked for time off at home. Look 
for a tall guy with a gray goatee and a BIGMA.



________________________________
 From: "Dance, Gayla" <dancegf@xxxxxxxxxxxx>
To: "missbirdphotos@xxxxxxxxxxxxx" <missbirdphotos@xxxxxxxxxxxxx> 
Sent: Thursday, March 8, 2012 6:22 AM
Subject: [missbirdphotos] Birding on Saturday
 
I believe there is a birding event on Sat. near Turcotte Labs and Highway 43.  
Weather permitting, I wondered if any of the MissBird Photographers were 
planning on attending.



gayla

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