Just got me...

KrisK10D · 03-21-2008, 03:42 AM

... a Sigma 17-70mm f/2.8-4.5 DC MACRO AF.

Read lots of reviews of those who use this lens here and must say it made my decission that much easier. Thanks be to them

Can't wait to get it!

Sprags · 03-21-2008, 04:44 AM

Congratulations!...Don't forget to post some photos so everyone can see how great your new lens is.

**pentagor** · 03-21-2008, 05:12 AM

I purchased this lens too. I just have one question for owners of this lens. Is it just mine specimen, or do others have a minimum focus of 0mm too. At 70mm, my min focus distance is practicaly 0.

drabina · 03-21-2008, 05:47 AM

pentagor: I have noticed the same thing. I was getting closer and closer to the object and I have almost touched it with the front element and the camera still focused correctly. All I can say that it is pretty impressive.

selar · 03-21-2008, 05:58 AM

Minimum focus distance is calculated from the sensor plane, so it can never be zero.

egordon99 · 03-21-2008, 08:00 AM

The "working distance" of that lens is pretty much 0, like you discovered. Not to be confused with MFD.

**pentagor** · 03-21-2008, 10:40 AM

Originally posted by egordon99

The "working distance" of that lens is pretty much 0, like you discovered. Not to be confused with MFD.

OK, so working distance. But here is the strange thing. The focusing ring shows the minimum distance of 0.2m or 0.65ft. So what is this distance? it is neither MFD nor working distance, because the length of extracted lens is about 0.14m and I don't think, that the distance from the rear element to the sensor is as much as 6cm.....

rmtagg · 03-21-2008, 10:53 AM

pictures?????

KrisK10D · 03-23-2008, 04:21 PM

heehe

Pictars when it gets here for sure. 4 day weekend cause of Easter tho so I'm not expecting it for a couple days yet :S

03-21-2008, 03:42 AM	#1
KrisK10D Veteran Member Join Date: Feb 2008 Location: Sydney, Australia Photos: Gallery Posts: 1,274	Just got me... ... a Sigma 17-70mm f/2.8-4.5 DC MACRO AF. Read lots of reviews of those who use this lens here and must say it made my decission that much easier. Thanks be to them Can't wait to get it!

03-21-2008, 04:44 AM	#2
Sprags Inactive Account Join Date: Jan 2008 Location: Portland, Maine Posts: 218	Congratulations!...Don't forget to post some photos so everyone can see how great your new lens is.

03-21-2008, 05:12 AM	#3
pentagor Site Supporter Join Date: Dec 2007 Location: Ljubljana, Slovenia Posts: 495	I purchased this lens too. I just have one question for owners of this lens. Is it just mine specimen, or do others have a minimum focus of 0mm too. At 70mm, my min focus distance is practicaly 0.

03-21-2008, 05:47 AM	#4
drabina Veteran Member Join Date: Feb 2008 Location: NJ Posts: 525	pentagor: I have noticed the same thing. I was getting closer and closer to the object and I have almost touched it with the front element and the camera still focused correctly. All I can say that it is pretty impressive.

03-21-2008, 05:58 AM	#5
selar Veteran Member Join Date: Jul 2007 Location: Sydney, Australia Photos: Gallery \| Albums Posts: 2,042	Minimum focus distance is calculated from the sensor plane, so it can never be zero.

03-21-2008, 08:00 AM	#6
egordon99 Inactive Account Join Date: Dec 2006 Location: Outside of Philly Posts: 1,561	The "working distance" of that lens is pretty much 0, like you discovered. Not to be confused with MFD.

03-21-2008, 10:40 AM	#7
pentagor Site Supporter Join Date: Dec 2007 Location: Ljubljana, Slovenia Posts: 495	Originally posted by egordon99 The "working distance" of that lens is pretty much 0, like you discovered. Not to be confused with MFD. OK, so working distance. But here is the strange thing. The focusing ring shows the minimum distance of 0.2m or 0.65ft. So what is this distance? it is neither MFD nor working distance, because the length of extracted lens is about 0.14m and I don't think, that the distance from the rear element to the sensor is as much as 6cm.....

03-21-2008, 10:53 AM	#8
rmtagg Veteran Member Join Date: Feb 2008 Location: Warrington, PA Photos: Gallery Posts: 1,271	pictures?????

03-23-2008, 04:21 PM	#9
KrisK10D Veteran Member Join Date: Feb 2008 Location: Sydney, Australia Photos: Gallery Posts: 1,274 Original Poster	heehe Pictars when it gets here for sure. 4 day weekend cause of Easter tho so I'm not expecting it for a couple days yet :S