Search results for 'uv filter' - page 120
How do I know whan a Lens is a macro lens
The Vivitar you linked to is a Zoom lens having some macro'ish capability. All true Macro lenses are primes having a fixed focal length and are (IMHO) the only real option for decent macro work. Macro zooms tend to simply adjust the internal elements to allow for slightly closer focussing at short...
Posted by Mannesty on 21/11/2010 - 12:07
Macro 100mm f2.8 WR
Already have filters off a previous Pentax lens. filters .. on a Macro lens? :shock: I wouldn't be putting anything in front of any of mine .. with macro you are looking for that ultimate sharpness and putting a filter in front can only degrade the IQ, even if only a little bit. I know some ...
Posted by Mike-P on 27/11/2010 - 11:12
Macro 100mm f2.8 WR
"Just my personal preference but why spend £500 on a macro lens to take the chance of not getting ultimate IQ." Often thought that myself with other lenses.:wink: Reading the manual...Pentax say "use a polarising filter with an auto focus camera for proper exposure and autofocusing." So wo...
Posted by Robin128 on 27/11/2010 - 11:59
Macro 100mm f2.8 WR
I suppose a polarising filter may bring out the colours a bit more but decent macro is all about good light so again, anything that cuts down on that and IQ is not a good thing imo. As for AF, never use it for macro, some do and fine tune manually but my best macro lens is manual focus anyway. I ...
Posted by Mike-P on 27/11/2010 - 12:19
Macro 100mm f2.8 WR
Minimum focus distance 30.3 cm. Working distance 13 cm. Minimum focus distance is measured from the sensor and Working distance from the front element i believe or maybe from the front part of the lens? I use a polarising filter, certainly with plants you make the colours look more brilliant. ...
Posted by Anvh on 27/11/2010 - 12:44
Macro 100mm f2.8 WR
I have filters on all my lenses to protect the front element but unscrew them when I take the front cap off to take pictures. Really? That just seems like a hassle to me. Why not just use the caps, and have the filters in your bag in case you need them? :? Reading the manual...Pentax say "use a...
Posted by Daniel Bridge on 29/11/2010 - 18:38
Macro 100mm f2.8 WR
I have filters on all my lenses to protect the front element but unscrew them when I take the front cap off to take pictures. Really? That just seems like a hassle to me. Why not just use the caps, and have the filters in your bag in case you need them? :? Virtually every lens I own was bought...
Posted by Mike-P on 29/11/2010 - 18:43
Macro 100mm f2.8 WR
I'm always terrified that the filter will slip out of my hand and then scratch the front element. My brother was lucky recently as he was shooting with his Sigma 10-20 with a filter (shooting on a building site) and something struck the filter chipping it. Would have been a disaster if he didn't hav...
Posted by tigershoot on 29/11/2010 - 19:48
Macro 100mm f2.8 WR
I'm always terrified that the filter will slip out of my hand and then scratch the front element. My brother was lucky recently as he was shooting with his Sigma 10-20 with a filter (shooting on a building site) and something struck the filter chipping it. Would have been a disaster if he didn't hav...
Posted by Mike-P on 29/11/2010 - 20:23
Shock Title fight result!
Ha-ha!.. Good ol' John!.. Even if waterboarded, he wouldn't admit that a Pentax lens was bettered in any way. Even in just one, not very important regard, in a rough and ready, very unscientific test like this one. Did Pentax ever have a more faithful disciple! :lol::lol: I learned another usefu...
Posted by mowog on 29/11/2010 - 19:40
What lens?
Further to my original posting I am adding the following: I have the standard Pentax 18-55 lens plus a SIGMA DG 70-300 lens. I would like to have one lens to cover wide angle and zoom. Hi there :) Zoom just means the focal length on the lens can be varied. You can get a gish eye zoom that exte...
Posted by Smeggypants on 08/12/2010 - 20:59
Filter for F6.7 135-600 Lens
The Pentax F6.7 135-600 lens has a sliding lens hood. A filter cannot be fitted to the lens because the hood extends past the threads and it ID of the hood is less than the OD of the filters that I have tried. The lens does take an attachment lens for close ups and I have the chance to buy a second ...
Posted by stephencalderbank1 on 12/12/2010 - 10:56
Filter for F6.7 135-600 Lens
It should be feasible - most filters I've handled use a screw-in ring to hold the glass in place, although it may be stuck solid and need a lens spanner/wrench to shift it. You could also keep your eyes open for the genuine Pentax filter to suit, assuming one was made. I have one of their yellow...
Posted by Dangermouse on 12/12/2010 - 11:07
Filter for F6.7 135-600 Lens
Does the lens not take rear-mounted filters?
Posted by johnriley on 12/12/2010 - 13:38
Filter for F6.7 135-600 Lens
Does the lens not take rear-mounted filters? Yes, it uses 52mm filters. Details . I wouldn't recommend taking the attachment lens apart, you'll probably need it. Without the attachment lens the 135-600mm min. focus distance is about 6 metres, with it fitted you can focus down to about 3.3 metres...
Posted by Mannesty on 12/12/2010 - 17:37
Filter for F6.7 135-600 Lens
Hi, sorry for delay in posting a reply to the earlier responses. Yes the 135-600 lens takes rear mounted filters. I already have an attachment lens but was considering buying another and converting it to a filter as a means of protecting the front lens. Does any one know who might do this sort of wo...
Posted by stephencalderbank1 on 26/12/2010 - 15:52
Filter for F6.7 135-600 Lens
's one for sale!
Posted by frederik9111 on 26/12/2010 - 18:27
Filter for F6.7 135-600 Lens
Well I've bought the attachment lens - and without breaking the bank. Now need to get it altered to act as a front filter. Any ideas? Now need to take out the lens glass and replace it with a filter glass made to suit the dia. Does anyone know who does that sort of thing? Best regards.
Posted by stephencalderbank1 on 28/12/2010 - 06:43
Filter for F6.7 135-600 Lens
Well I've bought the attachment lens - and without breaking the bank. Now need to get it altered to act as a front filter. Any ideas? Now need to take out the lens glass and replace it with a filter glass made to suit the dia. Does anyone know who does that sort of thing? Best regards. (although the...
Posted by hefty1 on 28/12/2010 - 16:52
Wanted: Sigma 30mm f/1.4
Oops sorry John, I didn't notice the forum either... comes of just using "New Posts" to find random threads to hijack...i mean...topic drift... It's interesting you feel that way flossie about 30mm as a focal length; considering it's very close to the standard 50mm which was so popular on 35mm. B...
Posted by flossie on 08/01/2011 - 14:10
