Changing from Analogue to Digital


TonyCr

Link Posted 09/06/2010 - 12:24
I have an MZ3 with 28-90 & 80 - 320 AF lenses and Pentax TTLflash. I am reliably told that all would be compatible with the new DSLRs and, for the sake of economy, would want to use them with a new DSLR. I have been looking at the K7. Is there anything I need to be aware of? Is there a better/more suitable DSLR in the Pentax range? Any other advice?

whelmed

Link Posted 09/06/2010 - 12:41
The K7 is a great camera. At the moment it's the flagship Pentax dSLR. The Pentax K-X is another option if you want to have good high-iso performance.

Other than that, your two lenses will work great on any dSLR. Just remember the crop factor though, so your 28-90 will be equivalent to a 42-135mm and the other is a 120-480mm on digital. That means you'll be lacking a lot on the wide end of things. You can pick up a 18-55mm kit lens on this forum from time to time for less than 50 quid though.

Welcome back to the forum!
K-5; Siggy 10-20 f4, 30mm f1.4, 18-50mm f2.8, 70-200mm f2.8; Tammy 400mm f4, 500mm f8
Last Edited by whelmed on 09/06/2010 - 12:41

Anvh

Link Posted 09/06/2010 - 12:48
Lenses are covered.
FA lenses work without any problems or limitations, if you set the aperture on Auto.

the current DSLR don't support TTL flash however only P-TTL.
So will work but not in TTL only in Auto or Manual.
Stefan


K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
Last Edited by Anvh on 09/06/2010 - 12:49

snappychappy

Link Posted 09/06/2010 - 12:48
Hi and welcome, as above really, get some shots posted up when you can.

Steve
My piccies.

pentaxian450

Link Posted 09/06/2010 - 12:49
Your flash might not work in auto mode on the newer DSLR, unless it also support P-TTL.

You should also verify the trigger voltage of the flash to make sure it won't fry the electronics on the new camera.

edit.: I hate it when Stefan types faster than me.
Yves (another one of those crazy Canucks)
Last Edited by pentaxian450 on 09/06/2010 - 12:51

Anvh

Link Posted 09/06/2010 - 12:51
pentaxian450 wrote:
Your flash might not work in auto mode on the newer DSLR, unless it also support P-TTL.

Yves, Auto mode is something different then TTL or P-TTL.

TTL use the metering of the camera but Auto use a light sensitive sensor in the flash and use the information about aperture and ISO to calculate the right flash power.
Stefan


K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ

pentaxian450

Link Posted 09/06/2010 - 12:53
When I wrote auto mode, I meant P-TTL. Some old Pentax flashes don't have auto mode, if I remember correctly.
Yves (another one of those crazy Canucks)

robbie_d

Link Posted 09/06/2010 - 15:17
whelmed wrote:
The K7 is a great camera. At the moment it's the flagship Pentax dSLR. The Pentax K-X is another option if you want to have good high-iso performance.

Other than that, your two lenses will work great on any dSLR. Just remember the crop factor though, so your 28-90 will be equivalent to a 42-135mm and the other is a 120-480mm on digital. That means you'll be lacking a lot on the wide end of things. You can pick up a 18-55mm kit lens on this forum from time to time for less than 50 quid though.

Welcome back to the forum!

I think SRS (amongst other places) have them new for 25.
If you can't say something nice about Pentax, you won't say anything at all.

Apparently.

Anvh

Link Posted 09/06/2010 - 15:27
pentaxian450 wrote:
When I wrote auto mode, I meant P-TTL. Some old Pentax flashes don't have auto mode, if I remember correctly.

Yeah I know but it was confusing.

For the voltage, any Pentax flash is good to be used if you've another brand of flash you need to be careful with some models but since you said the flash has TTL it's so good as safe, it's the older flashes that can give quite a voltage
Stefan


K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
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